From these two incontrovertible premises he deduced that the Library is total and that its shelves register all the possible combinations of the twenty-odd orthographical symbols (a number which, though extremely vast, is not infinite). Everything: the minutely detailed history of the future, the archangels' autobiographies, the faithful catalogues of the Library, thousands and thousands of false catalogues, the demonstration of the fallacy of those catalogues, the demonstration of the fallacy of the true catalogue, the Gnostic gospel of Basilides, the commentary on that gospel, the commentary on the commentary on that gospel, the true story of your death, the translation of every book in all languages, the interpolations of every book in all books.A library that contains practically any possible/conceivable information source known to man or some other intelligent/sapient species, if not a multitude of intelligent species. This labyrinthian library seems to be a natural breeding spot for MacGuffins and it has just about all of life's secrets and answers. The Great Big Book of Everything, Big Book of War, Reality-Writing Book, Portal Book, Tome of Eldritch Lore, and Chronoscopes along with other things can all be found here. Because of its wealth of knowledge, the library is a very valuable information resource for the main cast. May be a Magical Library as well, which could go a long way into justifying its often unreal/absurd level of comprehensiveness. Often times this is guarded by a Magic Librarian or other force. Sometimes there will be a struggle with another group trying to obtain the same information, sometimes in a physical fight, but just as often with a Battle of Wits. If you're lucky, you'll find what you need. If you're not, it may turn out to be a Blank Book all along. In many works, this setting is either very hard to get to, long forgotten, or rumoured to be a myth. In sci-fi and High Fantasy works, however, the library can be quite well publicized, and it's sometimes a big tourist destination. Please note that the library must not be split up into multiple smaller libraries but instead be a continuous entity. So you can have a huge connected library, but not a bunch of smaller branches.
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Anime & Manga
- The Infinity Library of the Lyrical Nanoha francise has all the publications and data of every world, and has been described as containing the memories of the universe. It's so huge that nobody has cataloged even a small fraction of it, and people wanting to use it for research often form multi-week expeditions to do so. These are people who can use search magic to speed things up and read several books at once, mind you. StrikerS uses the library to put Yuuno on a bus by appointing him as the Chief Librarian. At the age of 15. Vivid reveals that the more ancient, unsorted sections contain the original storage areas of the books themselves, requiring trained personnel to scour it first for hazards before declaring it safe for people to enter.
- Mahou Sensei Negima! has Library Island, a city-sized underground library so massive that Mahora actually has a school club dedicated to exploring it, with standard club equipment consisting of rock climbing gear. It's known to contain books that make the holder more intelligent, golems, dragons, secluded lakes, hidden passages (also lined with bookshelves), waterfallsnote the roots of the World Tree, and lots of booby traps.
- The Exterior Library in Maoyuu Maou Yuusha contains all known knowledge from The Multiverse and is populated by a mysterious demon clan. The titular Demon Queen hails from that clan and used the knowledge she learnt from within to not only claim her current position, but also kick start the equivalent of the Real Life British Agricultural Revolution in the human world. Witch Girl is eventually revealed to be a member of the same clan despite having been raised a human and in her side story gains access to Exterior Library.
- The Great Celaeno Library from Haiyore! Nyarko-san, another Mythology Gag to the Cthulhu Mythos, which the protagonists visit in the 2013 TV season. It's said to contain just about every book in the known universe, and for good measure even includes the Gaia Library (see below under Live-Action Television).
- The creators of the first City of Gold in The Mysterious Cities of Gold had kept records of everything written "since man learned to write". Of course, that city is destroyed in the final episode, and so too are the writings.
- The library of St. Marguerite Academy, in Gosick, is known for its vast amount of books and labyrinthine staircases. A great deal of humor derives from the fact that Kujo has to climb the stairs to reach the greenhouse at the top level, while Victorique has the privilege to use the elevator. The library is also a prolific source of urban legends among St. Marguerite Academy students. It is said that a golden fairy inhabits the top floor, and that those who step on the tirteenth step of the stairway would be cursed.
- The library of the Crystal Ballroom in Nexus contains all the historical memory of (at least the known) universe.
- Elder of the Universe and Silver Surfer foe, the Possessor, founded the largest university and library in the Marvel Universe on the planet Rus, complete with a master computer containing his vast knowledge.
- Fables contains a massive library so large that the foyer is large enough to be a seat of government and contain objects of mythical size (Excalibur has literally become as big as the legend of Arthur). Oddly even though it belongs to all sorts of magical creatures it's never implied to be magical in any way except for its extreme size.
- The Library of Dream (pictured above) in The Sandman is full of those books that were conceived by their authors but never written or completed. This not only includes things like G. K. Chesterton's The Man Who Was October, or P. G. Wodehouse's Psmith and Jeeves, but an awful lot of books like That Romantic Comedy Sci-Fi Thriller I Used to Think About on the Bus to Work. Word of God has it that it has an annex that contains everything that actually was written, too. We just never see it because it's so tiny compared to the rest of the place.
- Superman: The Fortress of Solitude has information from the 28 known galaxies. Supes decides to store up Earth's knowledge as well.
- At one point Red Sonja is recruited to defend the Citadel of All Knowledge. Despite the name it's a fairly small building, but given the era and difficulties of travel it may well be the greatest collection of knowledge in the world.
- The Nuptialverse has the Keeper's library, which seems to be the sole location of her plane of existence. There's a book for every sentient being who's ever lived, containing every single detail of their lives.
- The Imperial Archives in The Equestria Chronicles serves as one of these, holding all accumulated knowledge for the entire Earth in a 2.25 square mile room. The library itself is a cozy place, complete with fireplaces and warm lighting. It's also in the process of being digitized and stored in a nearby server room.
- The Last Brony: Kingdom Hearts With a Black Sora has the Great Archive, which doubles as a memorial for bygone worlds.
- The towering fortress-library in The Name of the Rose contains all the accumulated knowledge of ancient Europe (see Literature, below). It burns down at the end due to the bastard antagonist, forcing William of Baskerville to make a tough decision about which books to take with him. Oh, and it's also a labyrinth full of secret passageways.
- There are a few super-libraries in the Star Wars mythos: The Jedi library seen in the prequels; an enormous data collection belonging to a former smuggler; a whole planet is devoted to being a galactic library. All three of these are implied to be the sum of all knowledge in the galaxy (or damn near, at least). To the point where when, in Attack of the Clones, gravitational calculations prove that a planet MUST exist at a certain location, yet there is no record of such a planet, the librarian believes the library's records over the laws of physics. Just to drive home the point of how complacent the Old Republic had become.
- The book The City of Dreaming Books by German author Walter Moers takes place in the city of Bookholm. On the surface, you can buy nearly every book in existence. But in the catacombes below, if you are able to survive long enough, you can find everything ever written. Somewhere.
- Jorge Luis Borges' short story "The Library of Babel" describes a library that contains every possible book in the universe. This library is a lot less useful than most examples of this trope, because it is incomprehensibly large. So yes, the true story of your own death is in there, but so is every conceivable false story of your own death, with nothing to distinguish them. Worse yet, the library is randomized, with no catalog or organization to help you find something specific. More than 99.999999999999999% of the books are simply gibberish — the narrator's father told him that he had once seen a book that was nothing but the letters MCVMCVMCVMCV repeated endlessly on every page.
- Borges by his own admission modeled this library on the short story "The Universal Library" (Die Universalbibliothek, 1901) in which Kurd Laßwitz discusses and analyses the ins and outs of a hypothetical library consisting of books of a standard size containing every possible permutation of letters and spaces.
- The Kingdom of the Isles has the library-fortress of Sarth, maintained by an order of monks. The library spans entire levels burrowed into a small hill, while an old dwarven mine beneath the hill provides even more room for expansion.
- The Beast's library in Robin McKinley's Beauty. Might not have all the books that will ever be written, but it certainly has books that haven't been written as of when the story occurs.
Beauty: "Rudyard Kipling"? This is a name?
- The Great Library of Pandathaway in the Guardians of the Flame series appears to qualify — though its librarians also charge ruinously high fees to actually find the information within its cavernous shelves and chambers.
- The Clayr's Great Library in Garth Nix's Old Kingdom series, which first shows up in Lirael, is under a mountain and doesn't limit itself to just books: odds and ends like sealed Free Magic beings and chambers large enough that it takes ten minutes to walk through them that contain only a pond, a tree, loads and loads of flowers and a fake sky (this is underground, remember?) are hidden here and there. Working in the library is apparently dangerous enough that whole parties of armed librarians are required for trips into the lower levels, and all librarians are required to have various weapons as well as a whistle and a clockwork mouse that will raise an alarm in case of emergencies on their person.
- In The Neverending Story, Bastian creates a library with every story he has ever composed, for the benefit of a city of storytellers.
- The Discworld explains the phenomenon of L-Space, which can turn any collection of books into a Library of Babel, thusly: Knowledge = Power = Energy = Mass, which distorts time and space. "A good bookshop is just a genteel black hole that knows how to read." That said, it also has more specific examples.
- The library of Unseen University is a major "node" in L-Space owing to the sheer weight of accumulated knowledge distorting the space-time continuum. The library itself is pretty much a universe of its own where the library dome is always directly overhead no matter where you are, creatures such as the thesaurus lurk between the shelves, and lost research students have formed tribes in the stacks.
- The Library of Ephebe in Small Gods is clearly modeled on the real-life Library of Alexandria, i.e., a serious attempt to collect all known books in existence - with the added feature of an earthed copper roof in case one of the Disc's myriad deities takes issue with something in its collection. It seems large but otherwise normal until it is burning down and The Librarian pops in and out via L-Space to save some of the books. It gets rebuilt later with another library in Omnia acting as backup, but many works are irretrievably lost.
- Death's Library is a variation - every person's life story writes itself into a book somewhere on his shelves. As you go back, the histories are written on scrolls, then animal skins, then stone slabs... One character asks Death's daughter (adopted) what came before the slabs, because some people would "quite like to know". She replies that she didn't get that far, as she was running out of candles.
- Death also has a more straight version of this; in The Last Continent he is looking for information on the Discworld's version of Australia, XXXX. He walks into the library and asks for information on the dangerous animals, and is buried in books. He then changes the request to the non-dangerous ones, and one sheet of paper floats down, reading "some of the sheep."
- The Galactic Library on Trantor, from Isaac Asimov's Foundation series, should count. At least until it's sacked. Add in the 'finished' copy of the Encyclopedia Galactica which is used to 'provide' the chapter quotes, as the Encyclopedia project is intended as a compendium of human knowledge so it won't be forgotten, too.
- Classic H.P. Lovecraft examples:
- The Pnakotus Archive of the Great Race of Yith hidden deep underground somewhere in the Australian Outback, which is supposed to contain the history and combined knowledge of every civilization that has ruled, or will ever rule, planet Earth.
- In HP Lovecraft's writing, some real world libraries also hold tomes of Eldritch lore. The Necronomicon, one of the best known examples, can be found in the British Museum, the National Library of France, the Widener Library of Harvard University, and the University of Buenos Aires. Some of these (particularly the National Library of France) are so old and so large that they probably count as real life examples without the terrifying books which drive people mad. note
- A Series of Unfortunate Events features several non-supernatural libraries which come close to this, including a massive system of filing cabinets, a collection of banned books, and a pile of valuable secret documents under a table.Every single book features a library of some sort which is plot important.
- A Shout-Out to this. The library of the abbey in The Name of the Rose; though it does not literally contain every possible book, it is described as containing within it all the knowledge of medieval Europe, and entrance to it is forbidden. Also, the blind monk Jorge de Burgos is an obvious Shout-Out to Borges.
- The Archives of the University in The Name of the Wind and sequels. It has no natural light, and it's so vast it's difficult to find anything, since no librarian could live long enough to implement an organization system, so there are different systems in place in different areas. It has The Big Board that marks locations in the world where teams of librarians are retrieving more books. There is one character, Puppet, who has lived in the Archives for years. There are "bad neighborhoods" of shelves with no organization whatsoever. There are secret passages that access the Archives from the undercity that was buried hundreds or thousands of years ago.
- The Great Library in the Thursday Next books, which contains every book that will ever be written, and a few more besides.
- Occurs regularly as a location throughout George MacDonald's fiction, notably Phantastes, Lilith, and Alec Forbes. Even in his realistic novels, the books in the library are definitely magical.
- The Invisible Library in Genevieve Cogman's book of the same name, which collects books from across the Multiverse, especially books that are unique to one reality.
- In Protector, part of Larry Niven's Known Space series, there's one on the Pak homeworld, large enough that the title character spent decades in one section.
- The Library in Elizabeth Bear's story "In Libres". It's way Bigger on the Inside (readers are advised to bring several days' worth of food supplies), the bookshelves form a mobile labirynth, and it is said to contain every book ever written.
- The Hogwarts library in the Harry Potter books is a downplayed example — it may not contain everything, but it contains virtually everything relevant to the plot of the story.
- The Gam3: One of the Game's factions, maintains a special, tightly guarded archive. Each book corresponds to a 'version' of the Game, and contains entire libraries of data about that time period. The earliest volumes are kept locked away even from the rest of the highly-secure archive.
- Journey to Chaos: The public library in Dnnac Ledo is massive. One cannot see the tops of the shelves nor the end of the rows; they extend beyond the horizon; the library is Bigger on the Inside. It contains every book the immortal Walking the Earth elves could get their hands on after thousands of years, more that they themselves have written and it doesn't end with paper books either. It has artifact exhibits, virtual reality booths and jars of informative scents. The only reason Eric doesn't pitch a tent is because he doesn't have it with him at the moment.
Live Action TV
- Doctor Who:
- "Silence in the Library"/"Forest of the Dead" is set in a library the size of a planet, which has long since been abandoned due to an infestation of Vashta Nerada. note
- The TARDIS has been hinted to have an impressive library of its own, which is finally seen properly in the episode "Journey to the Centre of the TARDIS".
- "The Inforarium" features yet another, this one involved in the business of selling information, and rather shadier than the Library above.
- "Extremis": The Haereticum, the Vatican's secret library of blasphemy, is at least five stories tall and filled with at least a thousand years' worth of the world's most dangerous literature.
- The Gaia Library in Kamen Rider Double, a compendium of every single bit of information on Earth, which manifests to Philip in the form of a white blank space full of CG bookshelves whoosing around, Matrix-style, that give him a book with the desired information as he enters specific keywords, not unlike Google.
- Star Trek:
- Memory Alpha is the Library of Congress for the Federation. Since the Federation consists of multiple worlds, and new information is being brought in by Starships all the time, it's probably huge. Logically, there are Memories Beta through Omega to back it up in case the facility is lost.
- In one of Diane Duane's Star Trek novels, the Enterprise returns to Earth for a resupply, and while everyone else is on shore leave, Spock stays behind to update the ship's computers with information from all of Earth's major libraries. (He finds it relaxing.)
- Warehouse 13: Myka discovers that the eponymous Warehouse also holds a massive library containing first editions of everything ever printed.
Pete: Does that include comic books?
- Warhammer 40,000 has plenty of planetary libraries and eldritch stores of information:
- The Black Library contains the collected knowledge of the entire Eldar race, but is hidden in the Webway and guarded by the greatest of the Harlequins' Solitaires. Only one human has visited it, but has sworn never to speak of what he found there, while the Arch-sorcerer Ahriman is obsessed with plundering its secrets for himself.
- The Imperium has thousands, ranging from Alexandria-sized to covering all the planets in a system. Unfortunately they seem to think cataloging things is a sin, and only tend to pop up in the background when they're being razed by Orks or captured by Chaos.
- Of particular note is the Adeptus Administratum offices on Holy Terra, where armies of robed scribes carefully record useless census data thousands of years out of date from worlds that don't exist anymore, then file the reports away in the kilometre-high stacks where they will never be read again. Meanwhile the Adeptus Mechanicus never deletes anything and stores the majority of the Imperium's scientific talent.
- The Hidden Library of Tzeentch is even larger than the Black Library and contains every single scrap of knowledge, every thought of every creature across space and time, and is where Tzeentch himself concocts his eternal plots.
- The Solemnance Archive, being a Necron record, has been expanding for the last hundred million years as its undead robot master, Trazyn the Infinite, adds new objects to his 'collection'. Such curios include the preserved head of an Imperial hero and entire armies of soldiers held in temporal stasis to form dioramas of historical conflicts.
- The Library of Yves in the Tabletop RPG In Nomine. Slightly subverted in that Yves' Library is actually well-organized ... it's the sheer scale of its contents that can make a search take days without assistance. Also notable is that the Library includes not just every book that ever existed, but every book that its author never actually got around to writing. (Such as the scripts for all seven seasons of Firefly.)
- In Planescape, Thoth's Library.
- The plane of Mirrodin from Magic: The Gathering gives us the Knowledge Pool at Lumengrid, home of an entire race of Gadgeteer Genius Badass Bookworms known as the Vedalken. While the Pool is technically less of a traditional library as it is a swirling mass of liquid wisdom compiled by its keepers over countless millenia, the Vedalken have made it their prerogative from Day 1 to collect as much knowledge as is conceivably possible.
- Exalted has this in the form of the Forbidding Manse of Ivy, headquarters of the Bureau of Destiny's department of Secrets (basically the people who keep track of everything that has happened in order to plan when people will make certain discoveries). Jupiter, the Maiden of Secrets, has a personal library which is much smaller but considered to be significantly more valuable by people familiar with it, since it not only contains her personal collection, but her own annotations and commentaries.
- The Duke's Archives, the personal collection of Duke Seath the Scaleless in Dark Souls. It consists of multiple rather large rooms and an entire tower (that also doubles as a dungeon), and considering that Seath is the creator of sorcery, they're no doubt on rather dangerous subjects. One fan estimated that the tower/dungeon section of the Archives alone contains nearly 97,000 books, and that's barely half the Archives.
- The Library of the Ancients in Final Fantasy V has an unbelievable number a books, including a large number which decide to attack the party. Being killed by a book is not a good way to go.
- The Dark People from The Longest Journey seek to obtain every book ever written, which they store in their library, located on a moving island whose location is a secret for but a few.
- Touhou features Voile, the Magical Library note in the Scarlet Devil Mansion's basement. It's large enough to allow for a roughly five-minute-long aerial battle over the bookshelves traveling in one direction without ever reaching the end. The library is maintained by Patchouli Knowledge, who spends her days locked up inside adding to the already-massive cache of knowledge - she's not just the librarian, but also the author of an unspecified proportion of the tomes in her library, and probably the overwhelming majority of the magic books in the library, given the esoteric rules for wizardry in the Touhou 'verse. While 100 straight years of this have given her anemia, asthma, and Vitamin A deficiency, you are more than likely to find anything you could ever want in there (Marisa sure does).
- World of Warcraft: The Library section of the Karazhan instance has bookshelves as tall as staircases, as well as books strewn all along the floor which can be picked up and used to give you one of a few buffs, depending on the tome. In addition to that, there are at least two libraries which might fit this trope even though they are physically small because they are larger on the inside than the outside, and/or because they have no normal doors and can only be reached by teleportation.
- The Temporal Security Agency in The Journeyman Project backed up ALL of recorded history on a single optical disc, specifically for the event that history would be altered. When that happens, a copy of this disc is left in the Agency headquarters to be altered while an Agent is sent to get the original in 200 million BC, and use the Agency computer to cross-reference the differences between the two.
- Subverted in The Labyrinth of Time. An orbital space station was meant to house a digital version of this, but it's accessed by a single terminal, and King Minos' attacks on the world had already caused a near-total deletion of its data, by the time the player gets there. Conveniently, the only content remaining is relevant to the plot.
- The Elder Scrolls
- Apocrypha, the Daedric plane of Oblivion belonging to Hermaeus Mora, the Daedric Prince of Knowledge (with a particular specialty in knowledge of the Eldritch variety), is a massive Magical Library. It is said to contain all of the knowledge in the universe. You get a chance to visit it in Skyrim's Dragonborn expansion, where it contains every book in the game, from the mundane to the Skill Books to the Spell Books, though most are randomly distributed. It also contains special "Black Books", artifacts which exist both on Nirn (where they act as portals to Apocrypha) and on this plane (where can actually be read and give special knowledge).
- The Imperial Library is the largest library on Nirn itself. Housed in the Imperial City's White-Gold Tower (which also serves as the palace of the Emperor), it also houses all known Elder Scrolls. Both the library and the Elder Scrolls are maintained by the Cult of the Ancestor Moth, whose members are referred to as "Moth Priests", an order dedicated to Julianos, the Aedric Divine God of Wisdom and Logic. (An unsubscribed event occurred sometime in the 4th Era which caused all of the Elder Scrolls to vanish from the library. They are now found scattered throughout Tamriel, and the Moth Priests have been working to recover them.)
- Played with in Ripper. It's called the "Virtual Library", as a public site in cyberspace, with a librarian jacked in from outside, but cyberspace itself is a rather small array of sites, many of them just personal wells. This library isn't just limited to regular books but also files and software, though you still have to check them out manually.
- The Zweiteturm in Atelier Ayesha. The result of a Fling a Light into the Future, it holds tomes on a large number of subjects from before the Dusk (though naturally, the only people known to come there are after either alchemy tomes or stuff on flowers). The only problem is that it's filled with rouge Slags (aka worker robots) that the lone caretaker can't really do much about. Not helping is its location in the middle of a great big hole in the middle of a large, dense forest.
- Battleborn has a couple of this in its lore.
- Codex the Eldrid's seat of power before it was darkened was one. The planet was the home to massive data troves – a planet-spanning repository of all the knowledge from around the universe, encoded into the very DNA structure of the planet's massive eliim trees.
- After Codex was darkened and the Eldrid re-settled on their ancient homeworld of Ekkunar, they tried restoring what they lost via the The Codex Regrowth. The Codex Regrowth is a testament to the Eldrid's determination to gain knowledge and preserve the natural order of the universe. There, the Eldrid have re-planted several seed-pods from the planet Codex in an attempt to re-grow the massive eliim trees and recover some of their lost knowledge troves. This grove is the setting of The Archive mission.
- In the Video Game Qurare: Magic Library, the original library is know for having stored knowledge of everything, Past Present and Future. And even alternate histories, you're essentially collecting all the female versions of historical figures as kodice(kodex) then you use them to fight the runaway kodice. A few are still male but most are female, the game is kicked off 15 years after a paradoc that cause the great library to explode and when the main character Miu was born.
- Nexus Clash has angelic Vaults of Enlightenment and demonic Damned Libraries, vast repositories of ancient knowledge from innumerable planes. The books within are a quick and easy way of Level Grinding and so factions strive to protect and control the libraries, but both kinds contain books that are all too willing to attack anyone who they deem unworthy of their knowledge.
- In Nine Hours, Nine Persons, Nine Doors, one of the doors leads to a massive library filled with books on several different subjects. It was used by the ship's former owner as a storage for his book collection.
- The final Episode of Umineko: When They Cry features the City of Books. The entire library is owned by Featherine and contains all the various books and stories (in the meta-world, various Fragments) that she ever created. The final battle between Lambda, Battler and Ange against Bern takes place here.
- The Bibliothiki in Wapsi Square is an extra-dimensional library that contains every book ever written (but only things that have been written, no audio recordings). It is guarded by a sphinx librarian. It is implied that the Library of Alexandria was a physical manifestation.
- Double Subversion in Gunnerkrigg Court. When the protagonist heads to the Court's library to get information for her school essay, you'd expect it to be an imposing, spooky, silent, mazelike place — after all, the Court shown so far is a massive imposing castle with supernatural inhabitants and qualities. Turns out, the library — at least, the sections not devoted to science and technology — is a single flimsy bookshelf with useless books. So the girls head to the old part of the library... which is an imposing, spooky, silent, mazelike place.
- In The Adventures of Dr. McNinja arc "Futures Trading", the eponymous doctor uses a library of the printed out version of the entire Internet, with the aid of a robot of Google, to help him with overcoming the villains' Evil Plan and Storming the Castle. It's that kind of comic.
- In Girl Genius, there is "The Incorruptible Republic of the Immortal Library of the Grand Architect" - an autonomous government which rules a vast library deep beneath Paris. They are generally disliked by the more important and responsible people in Europa for their overwhelming neutrality, although it's been proven that they may favour one faction over another based on their history with books. ("Unlike other members of his family, Prince Tarvek never incurred any overdue fines... or let his dogs chew on the books...")
Wooster: They lend out any book to anybody. Many people find this irresponsible.
- In the Anti-Cliché and Mary-Sue Elimination Society, the Library Arcanium, the Society's base, has just about every book ever written, from every universe, and is basically in another dimension. It is very big.
- The Superhero School Whateley Academy library in the Whateley Universe isn't infinite, but it is enormous for a high school library, and contains lots of stuff human libraries shouldn't even know about, sealed off in private areas: alien books, Cosmic Horror Story books, ...
- The Wiki World (a reference to The Other Wiki) of AH.com: The Series, which is an Alternate Universe Earth that has been wholly converted into a huge spherical space station dedicated to the preservation of all knowledge. So large that entire lost civilisations of "Edit Gangs" roam its abyssal reaches. Its rulers, the Wikimasters, govern it from an intimidating "Dark Cathedral". Subverted, however, when it turns out that in fact they're all just a bunch of pathetic anime nerds.
- The online story Dominion And Duchy has one in the Galactic Library. It is run by an A.I. known as the Librarian and apparently holds the contents of the Great Library of Alexandria. The Librarian was apparently organizing it for the humans when they make first contact.
- The SCP Foundation has SCP-1986, a seemingly-infinite tunnel full of books that range from the slightly odd to extremely weird.
- The Serpent's Hand, a secret society opposed to the Foundation's practices, operates from an anomalous Library that contains almost every book ever written (along with a few that weren't). It exists "outside of normal space" but can be accessed through certain specific rituals performed in certain specific places.
- In Heroes and Scientists, the Archives are the result of million-year-old aliens roaming the galaxy collecting its scientific and cultural knowledge. Much of the story's tension derives from various people who want to use the knowledge for good or evil. The Archivist, meanwhile, is adamant that the knowledge not be used at all.
- Avatar: The Last Airbender: "The Library" in the desert is legendary for its supply of books. One scholar says that, as the library is withdrawing into the spirit world that he could spend his life searching and never find a greater store of knowledge. The supernatural librarian, Wan Shi Tong, charges new knowledge from visitors and sends out fox familiars to retrieve more.
- In "The Why of Fry" the Brain Spawn are constructing a database of all the knowledge in the universe, and once it's full, they plan to destroy the universe to make sure no new knowledge appears. In Fry's own words, "Now it's personal."
- The Brain Spawn, amusingly, are actually scanning in EVERY SINGLE FACT (such as "2+2=4", "Puppies are cute", etc) not just tomes of knowledge or principles of mathematics. (Fridge Logic: If they wanted to store all mathematical facts, they'd need to record infinite facts of the form "n+n=2n" alone.)
- Spoofed in "Mars University". All the literature in the world is in the Mars U library — on two disks. (Fiction and Nonfiction)
- Kaeloo: The main four own a library full of books on every topic available, no mater how ridiculous it may seem.
- The Library of Babel offer any 3200 character combination of english letters, comma, space, and period.
- The Library of Alexandria gets this treatment in fiction. It held so much ancient knowledge that some say that if it had not burned down and been lost forever, technology would be significantly more advanced today. At the least, we'd know the content of many more classical works.
- While nowhere near as well known as the library of Alexandria, the House of Wisdom, located in ancient Baghdad, was for its time the largest repository of knowledge in the world and actually held a great number of Greek and Roman translated pieces that may have originated from Alexandria. Unfortunately, it too was destroyed, in their case when the Mongols sacked the city.
- The British Library could represent the closest modern version, at 170 million items. It's a legal deposit library, so by law, every book, pamphlet, magazine and newspaper published in the UK must send a free copy to be archived.
- The Lenin library in Moscow ("Leninka" for short) is the closest real-life example regarding the Soviet era. It was guaranteed to have a copy of every single book officially published in the Soviet Union.
- The US Library of Congress aims to include at least one copy of every single book ever published in the United States, and as such has literally millions of books. It's only slightly smaller than the British Library (the UK's equivalent institution).
- The movement towards everything being published on the Internet is extremely useful if an apocalyptic event happens: in the past, war, plague, earthquake could raze an entire city and bury or burn everything, nowadays most important info is already stored in too many places to lose everything at once.