History Main / SuperSargassoSea

-->--''Literature/HarryPotterAndTheHalfBloodPrince'' on the Room of Requirement (pictured to the right)

->He gasped. Despite his haste, his panic, his fear of what awaited him back in the bathroom, he could not help but be overawed by what he was looking at. He was standing in a room the size of a large cathedral, whose high windows were sending shafts of light down upon what looked like a city with towering walls, built of what Harry knew must be objects hidden by generations of Hogwarts inhabitants. There were alleyways and roads bordered by teetering piles of broken and damaged furniture, stowed away, perhaps, to hide the evidence of mishandled magic, or else hidden by castle-proud house-elves. There were thousands and thousands of books, no doubt banned or graffitied or stolen. There were winged catapults and Fanged Frisbees, some still with enough life in them to hover halfheartedly over the mountains of other forbidden items; there were chipped bottles of congealed potions, hats, jewels, cloaks; there were what looked like dragon eggshells, corked bottles whose contents still shimmered evilly, several rusting swords, and a heavy, bloodstained axe.

* ''Literature/HarryPotter'' has a variant in the form of the Room of Requirement. The room is enchanted to always appear in the form that someone walking past its hidden entrance needs it to have. Generations of Hogwarts students and staff needing somewhere to hide random crap has caused one of its many forms to be an endless room filled with everything that's been hidden and forgotten over the centuries--though in [[Literature/HarryPotterAndTheDeathlyHallows the final book]], [[spoiler:it all gets destroyed with a good dose of wizard napalm]].

* In ''LightNovel/TheFamiliarOfZero'', lost objects and people from Earth often end up in the alternate world of Halkeginia. Earth technology is highly prized due to the world's low technology level.

* ''Literature/HarryPotter'' has a variant in the form of the Room of Requirement. The room is enchanted to always appear in the form that someone walking past its hidden entrance needs it to have. Generations of Hogwarts students and staff needing somewhere to hide random crap has caused one of its many forms to be an endless room filled with everything that's been hidden and forgotten over the centuries--though in the final book, [[spoiler:it all gets destroyed with a good dose of wizard napalm]].

* ''Literature/HarryPotter'' has a variant in the form of the Room of Requirement. The room is enchanted to always appear in the form that someone walking past its hidden entrance needs it to have. Generations of Hogwarts students and staff needing someplace to hide random crap and subsequently forgetting about it has caused one of its many forms to be an endless room filled with all the objects that people at Hogwarts have hidden over the years -- though in the final book [[spoiler:it all gets destroyed with a good dose of wizard napalm]].

* ''Literature/HarryPotter'' has a variant in the form of the Room of Requirement. The room is enchanted to always appear in the form that someone walking past its hidden entrance needs it to have, and generations of Hogwarts staff and house-elves needing someplace to hide objects, junk and dangerous artifacts they want hidden and forgotten about has caused one of its many forms to be an endless room filled with all the objects that people at Hogwarts have hidden over the years -- though in the final book [[spoiler:it all gets destroyed with a good dose of wizard napalm]].

* This trope is mentioned by name in the song Touch-Tone Telephone by ''Music/{{Lemon Demon}}'':

* ''WesternAnimation/SpongebobSquarepants'': In "[[Recap/TheMonsterWhoCameToBikiniBottomWelcomeToTheBikiniBottomTriangle Welcome to the Bikini Bottom Triangle]]", the titular location contains many items taken by the mermaids via singing to activate a giant vacuum, which opens a rift in the sky while doing so. When they sing their song backwards, the items are returned to their owner.

* ''Literature/{{Pact}}'': The Drains are places where forgotten things go, even gods forgotten by their former worshippers, and where Others such as bogeymen are formed.

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* ''Literature/{{Pact}}'': The many manifestations of the Drains are places where forgotten things go, even gods forgotten by their former worshipers, and where Others such as bogeyman are formed.
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This is a place all adventurers InHarmsWay wish they would end up, and everyone else wishes was just a fantasy; the multiverse's biggest attic/basement/toolshed. '''Everything''' is here. Starships, Indigo Children, misfit toys. It's a PortalCrossroadWorld where it's easy to enter but significantly harder to leave. It's a DerelictGraveyard that people actually ''live'' in. It's a LandfillBeyondTheStars where the crap ''never'' stops gathering. It's everything you could possibly want mixed with all the stuff you hoped you'd never see again.

* Oblivion Island from ''Anime/OblivionIslandHarukaAndTheMagicMirror'' is where neglected objects from our world end up being used by the inhabitants who can't make them themselves.

* Creator/JMichaelStraczynski's ''ComicBook/MidnightNation'' is a place of the lost and abandoned -- not just objects but people. A particularly interesting element of that is a shack containing the lost work of every artist who [[AuthorExistenceFailure died before creating it]], kept safe until such time that another artist can create it.

* Sakaar in ''Film/ThorRagnarok''; in the Franchise/MarvelCinematicUniverse, '''any''' BlindJump will add you to the endless stream of junk falling from the [[PortalCrossroadWorld myriad portals]] hovering above this LandfillBeyondTheStars.

* In ''Finders Keepers'' by Creator/EmilyRodda, the protagonist visits the world where things go when you put them down a moment ago and can't find them again.
* ''Literature/HarryPotter'' has a variant in the form of [[spoiler:an endless room filled with objects that people at Hogwarts have hidden over the years -- though it all gets destroyed in the final book with a good dose of wizard napalm]].

* The Border Sea from ''Literature/TheKeysToTheKingdom'' is full of lost object from the secondary realms.
* Creator/JanuszZajdel's short shory entitled "Ogon diabła" (The Devil's Tail) involves a researcher who discovers a dimension where lost items go to. And its inhabitants. The title itself is derived from a Polish folk saying which refers to lost items as "covered by the Devil with his tail".

* The Land of Lost Objects in ''Series/EerieIndiana'' is located at the center of the Earth and is run by the US government that steals objects to promote consumerism.
* The episode "[[Recap/CharmedS3E12WrestlingWithDemons Wrestling with Demons]]" of ''Series/{{Charmed|1998}}'' has the Halliwell sisters using a spell to find lost things backfiring to the point that everything they ever lost came back, thus turning their house into this trope. It starts off fairly normal, returning lost jewelry and countless missing socks, but quickly runs to the ridiculous when their grandmother's dog who went missing ''years'' before turns up out of nowhere and Phoebe's blonde hair, dyed in the kitchen sink, suddenly reverts back to brunette.

* ''TabletopGame/DungeonsAndDragons'' (BECMI) module [=IM3=] "The Best of Intentions". One of the planes the Immortal [=PCs=] may have to travel to is Unsoncy. The center of the plane is a rotating disk of debris that comes out of a singularity in the middle. Items lost on other planes of the universe end up here. The Immortal who controls the plane always looks here first when he loses a pair of socks in his washing machine.

* ''VideoGame/DarkVoid''. Aliens, lost ships, UsefulNotes/NikolaTesla. It's all in the Void. The hero even enters via TheBermudaTriangle.

* In text adventures there is usually a location which the player cannot reach, containing all the objects not currently in play. In the UsefulNotes/ZXSpectrum game ''Shadows of Mordor'', it is possible (by design or mischance) for the player to travel to this location -- the description reads 'Frodo is nowhere'. It isn't possible to leave again.
* This is how the titular ''VideoGame/{{Submachine}}'' behaves, with its architecture being comprised of a mishmash of ancient ruins from multiple civilizations.
* The Massive underground Ocean in the Neath from ''VideoGame/SunlessSea'' might well be one of these, being seemingly unconcerned with things such as time, space and causality. A lot of things to be found there seem to be plopped haphazardly from other places in space and time. Aside from entire cities, such as London, there are also Eldritch Abominations, the Skeletons of massive unknown...things, and A pair of Sphinxes implied to be from Egypt and somehow related to the famous one in Giza.

* The many manifestations of the Drains in ''Literature/{{Pact}}'' are places where forgotten things go, even gods forgotten by their former worshipers, and where Others such as bogeyman are formed.

* On the search for Cassie's missing dad, Marion and Cassie from ''WesternAnimation/BountyHamster'' find themselves in the world of the lost. Not only are lost objects there, but people too: there's a room of lost dads and even the antagonists that the duo 'lost.'
* A sock-oriented variant appears in one episode of ''WesternAnimation/JacobTwoTwo''. Jacob finds an AlternateDimension where all the missing socks go. Here, they use socks as currency, and there's even a black market for them.
* A literal [[http://ghostbusters.wikia.com/wiki/Land_of_Lost_Objects Land of Lost Objects]] appears in ''WesternAnimation/TheRealGhostbusters''.

* In ''WesternAnimation/TheRenAndStimpyShow'' episode "Black Hole", Commander Hoek and Cadet Stimpy go through a black hole and end up in a strange dimension, where they find a pile of all of Earth's missing left socks.
* The Bikini Bottom Triangle in the eponymous episode of ''WesternAnimation/SpongebobSquarepants'' contains many items taken by the mermaids via singing to activate a giant vacuum, which opens a rift in the sky while doing so. When they sing their song backwards, the items are returned to their owner.

* An episode of ''Series/{{Charmed|1998}}'' has the Halliwell sisters using a spell to find lost things backfiring to the point that everything they ever lost came back, thus turning their house into this trope. It starts off fairly normal, returning lost jewelry and countless missing socks, but quickly runs to the ridiculous when their grandmother's dog who went missing ''years'' before turns up out of nowhere and Phoebe's blonde hair, dyed in the kitchen sink, suddenly reverts back to brunette.

[-[[caption-width-right:350:[[https://www.deviantart.com/ancientking/art/The-Room-of-Hidden-Things-547173963 Image]] by Alexandra Pavlovich ([[https://www.deviantart.com/ancientking DeviantArt]], [[https://alexpavlovich.portfoliobox.net/ PortfolioBox]]).\\
Used with permission.]]-]

[[quoteright:350:[[Film/ThorRagnarok https://static.tvtropes.org/pmwiki/pub/images/thor_ragnarok_trailer_989345png.jpg]]]]

[[Magazine/ForteanTimes Charles Fort]] called it the [[https://en.wikipedia.org/wiki/Super-Sargasso_Sea Super-Sargasso Sea]]; the dimension into which lost things go. Amelia Earhart's over at the bar. The LostColony of Roanoke is next door. USS Cyclops? In the harbor. Music/ElvisPresley? [[ElvisLives Who do you think is on stage?]] The Dead Sea Scrolls? Have a pamphlet. And everybody has all the socks they could possibly need. Just not matched ones.

Not to be confused with ''Literature/WideSargassoSea'', a 1966 fanfic (but a classic nonetheless) of ''Literature/JaneEyre'' following the life of the latter's resident MadwomanInTheAttic.

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[[folder:Film - Live Action]]

* An episode of ''Series/{{Charmed|1998}}'' has the Halliwell sisters using a spell to find lost things backfiring to the point that everything they ever lost came back, thus turning their house into this trope. At the climax of the episode it ended up returning the lost souls of all the evil they defeated in the past, which might have made the current living threat worse before they devise a spell to use those spirits to put him down for good.
-->'''Phoebe''': So technically I lost it there and now I've found it again. I hope this doesn't affect my virginity.

* ''Literature/MaryPoppins Opens the Door'' has Mary Poppins take the Banks children to visit her uncle, the Man in the Moon, who hoards physical items lost on Earth.

[[folder: Anime and Manga]]

* In ''Anime/TheFamiliarOfZero'', lost objects and people from Earth often end up in the alternate world of Halkeginia. Earth technology is highly prized due to the world's low technology level.