History Main / LostWorld

Often a key element in a JungleOpera.

* DocSavage encountered several {{Lost World}}s, the most significant being the lost Mayan kingdom that provided him with the gold necessary to carry on his crusade. Several of these {{Lost World}}s are also {{El Dorado}}s.

* In the ''SpiderRiders'' franchises, a place aptly named the "Inner World" exists deep beneath the earth in a gigantic cavern filled with plants, an ocean and giant humanoid insects.

* The ''[[DeathWorld Zendikar]]'' setting in ''MagicTheGathering'' is an entire ''plane'' of this, complete with mystical artifacts and [[DoomyDoomsOfDoom horrible death at every turn]] for everyone from [[{{Mooks}} Goblins]] to ''[[PhysicalGod planeswalkers]]''. [[spoiler: [[JustifiedTrope Justified]] in that it doubles as the [[EldritchAbomination Eldrazi's]] [[SealedEvilInACan can]].]]
* ''SpiritOfTheCentury'' readily embraces this possibility due to its strong 1920s era pulp foundation. While no such places are directly described in too much detail, it's suggested that several exist in DarkestAfrica (most notably, the kinds of places where Gorilla Khan's will is law) and there's a small hint of a lead for a GameMaster to potentially follow about a journey to the Earth's core being planned in the sample adventure provided in the book.

* ''{{Pathfinder}}'' has the Vaults of Orv deep below the surface of Golarion. One illustration has a giant Tyrannosaurus fighting an eldritch abomination in a jungle.
* ''{{Exalted}}'': The world is full of unexplored or once-civilized places, but the Exalts can take it to the extreme: when [[EldritchAbomination She Who Lives in Her Name]] [[EarthShatteringKaboom destroyed ~90% of the world]], bits and pieces of it were thrown back into The Wyld; theoretically an Exalt with strong Wyld resistance can journey in it find things that were lost, up to and including ''worlds''.

* In ''AtlasShrugged'', Galt's Gulch is hidden within the mountains of Colorado with AppliedPhlebotinum. Its use as a sanctuary for embattled egoistic industrialists has a sort of DeusExMachina quality about it.

* Creator/JulesVerne's ''JourneyToTheCenterOfTheEarth''

* A 1999-2002 series based on the titular story was called ''SirArthurConanDoylesTheLostWorld''.

* DimeNovel hero NickCarter runs into a lost civilization of Old Norse speaking Amazons in Bolivia.

* AlanMoore had, as part of his ''ComicBook/TomStrong'' series, a WildWest town set atop a large mesa. It was ripped out of time and as an intended side effect, the people could not live without some alien fruit. Tom leaves them up there on the mountain, to use them as {{Redshirt}}s later on. The existence of sat-imagery is not commented upon.

* [[http://en.wikipedia.org/wiki/The_Asylum The Asylum's]] adaptation of the Burroughs novel (see below) ''TheLandThatTimeForgot'' features, naturally, The Land that Time Forgot, which is a sort of cosmic eddy.
** Amicus Pictures also adapted the book into a movie in TheSeventies. In that one the Land that Time Forgot is a perfectly normal lost continent with nothing cosmic about it (except maybe the way the animals reproduce).

* As mentioned in the quote above, ''Literature/{{Discworld}}'' is full of lost lands, mostly on the vaguely Asian continent of Klatch. Some of them are especially lost because they move about; these are called "brigadoons". It also had two mysterious and near-mythical continents, the Counterweight Continent and Ecksecksecksecks, both of which are now thoroughly (re)discovered (although the inhabitants might insist that they've (re)discovered the main setting of the books).

* ''VideoGame/DonkeyKongCountry 2'' has a Lost World area that is filled with several types of fauna and it isn't found anywhere else on the island. The levels here are PlatformHell. K. Rool is found in an ancient temple of sorts and defeating him sends him flying into the center of the light the temple is radiating, causing the Lost World to implode and sink the island.

[[folder:Film]]

* Paradise Falls from ''WesternAnimation/{{Up}}'' is a partial invocation of this trope. It's not particularly hidden, as Carl and Russell are able to find it with little more than a lot of balloons and a pocket GPS navigator. On the other hand, the film implies that it has remained unsettled because [[spoiler:AxCrazy Charles Muntz has been killing off any other explorers who've visited the area.]]

* ''IceAge: Dawn of the Dinosaurs'' used one to fit dinosaurs into the post-extinction ice age: the dinosaurs survived in an underground lost world.

* The Disney film ''AtlantisTheLostEmpire'' has the titular Atlantis.

* Disney's ''Disney/AtlantisTheLostEmpire''.

* ''WesternAnimation/Dino Boy'', aka ''Dino Boy in the Lost Valley'', which aired along with ''WesternAnimation/SpaceGhost''. The title valley had cavemen, dinosaurs and other prehistoric creatures, and several lost civilizations.

* Un'Goro Crater of ''VideoGame/WorldOfWarcraft''.

-->--'''''The Literature/{{Discworld}} Companion''''' on the dark continent of Klatch

* '50s BMovie and ''Series/MysteryScienceTheater3000'' feature ''LostContinent'', starring [[Series/{{Batman}} Cesar Romero]]. [[LeaveTheCameraRunning And it sure took some finding.]]
* The ''Franchise/JurassicPark'' films (a man-made example). The first sequel is actually titled ''TheLostWorldJurassicPark'' and its plot borrows a lot from Conan Doyle's novel.

** Explained as actually ''being'' in the ancient past - Tikal (shown as a funny glowing ball of light during most of the game) keeps sending characters to the past to try and explain why the mysterious being "Chaos" is a threat and how it can be stopped. Sometimes those characters stick around too long, end up in an oddly large temple, and are forced to find their way out (and in Knuckles' case, a few shards of the Master Emerald somehow made it there, despite the fact it was shattered only a few days ago, not 4,000 years ago).
*** Well, the levels themselves aren't actually in the past, but the characters do get transported there after completing them.
** For that matter, Angel Island usually has elements of this. Being suspended in the sky by the power of the [[GreenRocks Master Emerald]] helps.
* We now have the "Lost Hex" from the appropriately named VideoGame/SonicLostWorld, a PatchworkMap FloatingContinent made of hexagonal pieces.

* The 9th Sonic Stage and 3rd Knuckles Stage in VideoGame/SonicAdventure

* ''Dino Boy in the Lost Valley'', which aired along with ''WesternAnimation/SpaceGhost''. The title valley had cavemen, dinosaurs and other prehistoric creatures, and several lost civilizations.

*** Opar, first introduced in ''The Return of Tarzan'' (1913). This lost city is the last remnant of the world-spanning empire of {{Atlantis}}. Notable out of all the Lost Worlds in the Tarzan books because it's one of the only recurring lost worlds in the series

*** Opar, first introduced in ''The Return of Tarzan'' (1913). This lost city is the last remnant of the world-spanning empire of {{Atlantis}}.