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[[caption-width-right:350:''[[http://en.wikipedia.org/wiki/A_Rake%27s_Progress A Rake's Progress,]]'' by William Hogarth]]

A Den of Iniquity is typically a room, auditorium, or stadium in the EvilOverlord's EvilTowerOfOminousness or IslandBase where all sorts of sin and wrongdoing takes place. Although towers are in short supply nowadays, if the BigBad happens to [[ScrewTheRulesIMakeThem make and/or enforce the laws]] they might have one in their mansion (but explaining them to less debauched guests might be tricky).

The level of debauchery will vary according to the setting in question; family-friendly stories might make it a lounge for the {{Mooks}} to gamble, get drunk, and brawl (not necessarily in that order), while DarkerAndEdgier works might go for [[IHaveYouNowMyPretty rape]], [[ColdBloodedTorture torture]], and [[BloodSport blood sports]].

The Den of Iniquity is often a hangout for the {{Mooks}} or FacelessGoons who need something to keep them entertained when they're off-duty. On the other hand, whether the BigBad or TheDragon indulges in the debauchery depends on where they stand on the SlidingScaleOfAntagonistVileness.

Often populated with the PaidHarem and BodyguardBabes. The Den Of Iniquity isn't restricted to "evil" characters, but most [[IncorruptiblePurePureness heroes will simply find it beneath them]].

Compare OpiumDen. Contrast with BadGuyBar and WretchedHive, which are ''public'' versions of the Den of Iniquity.

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!!Examples:

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[[folder:Anime and Manga]]
* Babel Tower from the beginning of the second season of ''CodeGeass''. Gambling, blood-sports, waitresses in bunny-girl outfit... and particularly rich and influential guests could indulge in 'rabbit-hunts'. It's never specified exactly what that means for the caught 'bunnies', but one can make reasonable guesses. Unfortunately for one mafia-boss, however, he happened to catch a KillerRabbit...
* The Amazon Trio of Anime/SailorMoon Super S has a more subdued example in the form of a bar with a lone saxophone playing to lounge in-between missions.
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[[folder:Comic Books]]
* In ''l'épée de cistal'', there is one that is also a "stock exchange of sins": the minions shouts the name of one of the seven DeadlySins, and by that mean influence people all around the would to commit those sins.
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[[folder:Films -- Animated]]
* In ''WesternAnimation/ToyStory3'', there is a humorous example of a bunch of 'bad' toys hanging around in a vending machine, betting with Monopoly money and triple A batteries. They use a "Speak-And-Say" toy instead of a roulette table.
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[[folder:Films -- Live-Action]]
* ''Film/ReturnOfTheJedi'' has the audience chamber in Jabba's Palace, with musicians, live dancers, chained slave girls, and a rancor pit where unsuspecting victims were thrown in for the audience's amusement.
* Thulsa Doom's orgy chamber in ''Film/ConanTheBarbarian''. Goes from creepy to horrifying when you notice [[ImAHumanitarian exactly what's on the menu]] in there.
-->'''Subotai:''' So this is paradise.
* Xerxes' royal pavilion in ''Film/ThreeHundred'', filled with drugged courtiers and all forms of sex. And pot-smoking goat-headed servants.
* Tony Stark's jet is a PG-rated version in ''Film/IronMan1'', complete with drinks, stripper pole and lascivious dancers.
* The hideout of the Foot Clan in the 1990 ''Film/TeenageMutantNinjaTurtles'' film contains a room where underage teens smoke and gamble.
* Tiberius's manision in ''Caligula'' takes this UpToEleven.
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[[folder:Literature]]
* In Kim Newman's ''Literature/TheHoundOfTheDurbervilles'', Professor Moriarty has his apartment and criminal base in a building which has as its first floor a brothel, and his number two, Colonel Moran, often indulges himself with the "other employees." Moriarty himself seems to have no sex drive.
* The term "Den Of Iniquity" first appears in Creator/RobertEHoward's story "Texas John Alden".
* In the book ''Third And Indiana'', several of Diablo's hideouts are dens of iniquity.
* Ctuchik's tower in ''Literature/TheBelgariad'' is described as having several levels, one for each of his "exotic perversions". They include torture, wealth and one which [[NothingIsScarier the hero isn't allowed to enter]]
* In the ''StarTrekATimeTo...'' series, The pirates at Rashanar have one inside a derelict spaceship.
** The ''StarTrekVanguard'' ExpandedUniverse series has one aboard the Omari-Ekon, the Orion ship under registry to Ganz.
* Qibbu's Hut from the ''StarWars'' RepublicCommandoSeries of books.
* In ''Literature/TheDresdenFiles'', the psychic 'vampires' of the White Court maintain Club Zero, a 'club' where pretty much ''anything'' goes: sadomasochism, drug use, every alignment of sexual activity, gluttony, booze of any sort, anything you want is available, and doesn't even cost that much in terms of money or the like. As Harry recognizes, you can find anything you want in Club Zero...except fulfillment or meaning or love.
* In the ''IncarnationsOfImmortality'' book "Being a Green Mother," we find that Satan runs Mock Hell, where all types of sin can be indulged in, for "merely" a percentage of evil on your soul. Of course, when you get over 50%, you go to Hell for real. And it's no picnic. Of course, Satan being Satan, the pleasures [[spoiler:aren't real]], but the evil on the soul is.
* Anne Bishop's ''Ephemera'' novels have a Landscape called the Den of Iniquity. Described as a "carnal carnival" it's actually not a bad place, and the villains aren't welcome there.
* Appears in ''Literature/TheEyeOfArgon'' as part of its massive collection of [[ClicheStorm stock fantasy cliches]].
* In ''Literature/PleaseDontTellMyParentsImASupervillain'', Chinatown is a popular hangout for villains. Heroes stay away by truce.

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[[folder:Live-Action TV]]
* Captain Pike's fantasy-planet in the original ''Series/{{Star Trek|The Original Series}}'''s "The Cage."
* Tiberius' mansion in ''Series/IClaudius'' has one of these.
** The historical Tiberius, on the other hand, did not want and did not need one of these: an antisocial prick but [[BunnyEarsLawyer able administrator]], he preferred to spend his time mostly alone in his pleasure palace on the island of Capri, and according to Roman historian Suetonius, "[[ComicBook/CartoonHistoryOfTheUniverse indulging his pedophilic predilections]]" in private. Although later research showed that Tiberius went to Capri mostly because he wanted to hide from assassins and read in peace.
* ''Series/{{Supernatural}}'' sees Dean haul the angel Castiel to a brothel the night before said angel [[MustNotDieAVirgin expects to perish in a confrontation with the archangel Raphael]]. The incredibly straightlaced Castiel reacts predictably.
--> '''Castiel''': This is a den of iniquity. I should not be here.\\
'''Dean''': Dude, you full-on [[FallenAngel rebelled against Heaven]]. Iniquity is one of the ''perks''.
** It takes a hilarious turn when Castiel gets invited into a backroom with one of the girls. Moments later she runs out of the room shouting obscenities at him. Cas apparently read her mind, and casually told her it wasn't her fault [[DisappearedDad her dad left her family when she was little]]. Dean and Cas are forced to leave post-haste when the bouncers show up.
* In EagleHeart, a bizarre bylaw makes it legal to do ''anything'' in the sky. Everything goes, up to and including murder. Naturally, a crime baron sets up a blimp as his base of operations where every type of crime is indulged and encouraged (except smoking, because of the hydrogen)
-->'''Chris Monsanto:''' So what you're saying is that everything is legal in the sky, and there's a huge crime blimp floating around? I wonder how I missed that.
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[[folder:Music]]
* On each studio-album-proper, JoyDivision had a song describing one: "Day of the Lords" on ''Music/UnknownPleasures'', and "Atrocity Exhibition" on ''Music/{{Closer}}'' (the latter's title is a ShoutOut to Creator/JGBallard).
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[[folder:Toys]]
* The Bad Taste Bears figures feature [[http://static.tvtropes.org/pmwiki/pub/images/Den-Iniquity-cellar-large_3010.jpg one of these]].
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[[folder:Video Games]]
* ''VideoGame/FalloutNewVegas'' has Gomorrah, run by The Omerta. It also serves as a MinigameZone.
** Before that, the [[ExactlyWhatItSaysOnTheTin Den]] in ''VideoGame/{{Fallout 2}}'', and Dukov's Place in ''VideoGame/{{Fallout 3}}''.
* The Temple of Depraved in VideoGame/WarriorsOfMightAndMagic. They're mainly demons worshippers and, for some reason, Gnolls and Ogres.
* ''VideoGame/TheElderScrollsVSkyrim'' has ''The Ragged Flagon'', where the Thieves Guild hang out in-between jobs, located in the Ratway underneath Riften.
* The Den of Mortal Delights in the Black Temple raid instance in ''VideoGame/WorldOfWarcraft'' has parks, fluffy pillows, fountains, hookahs, silk curtains, nubile dancing blood elves, [[HornyDevils succubi and other female demons]] in stark contrast to the rest of the temple.
** Sunwell Plateau has a zone ''called'' the Den of Iniquity but its empty and wrecked.
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[[folder:Western Animation]]
* ''WesternAnimation/TheVentureBrothers'' showed a low-key example of this in the fourth season, a room inside the Monarch's cocoon where his minions would quietly gather for drinks on their downtime.
* Another low-key example: in one ''WesternAnimation/KimPossible'' episode, Ron stumbles upon a room full of Drakken's henchmen sitting around taking a break.
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