Digital Animation: Adventure Time Universe: The Land of Ooo

The world in Adventure Time

The Land of Ooo (located either near or in the create on the earth) is the main setting of Adventure Time, and is the home continent of Finn and Jake, along with all of their friends and foes. It is divided into many different kingdoms, of which the most prominent are the Ice Kingdom, Candy Kingdom, Castle Lemongrab, Wildberry Kingdom, Lumpy Space, Fire Kingdom, and Cloud Kingdom. There are also many geographical areas not known to be part of any kingdom, such as the Evil Forest and the Bad Lands.

Smaller Kingdoms

This list is in alphabetical order:
Box Kingdom - Box Prince -
De facto monarchy Breakfast Kingdom - Breakfast Princess and Toast Princess -
Diarchic monarchy Cloud Kingdom - Party God -
Utopian isocracy Desert Kingdom - Desert Princess -
Ethnarchic monarchy The Duchy of Nuts - The Duke and Duchess of Nuts -
Diarchic sovereignty Goblin Kingdom (pictured) - King Xergiok, Finn, Whisper Dan -
Constitutional monarchy Hot Dog Kingdom - Hot Dog Princess -
Micronational oligarchy Lumpy Space - Lumpy Space King and Queen -
Diarchic monarchy Slime Kingdom - Slime Princess -
Elective/hereditary monarchy Vampire territories - Marceline the Vampire Queen -
De facto sovereignty Wildberry Kingdom - Wildberry Princess -
Traditional monarchy Wizard City - Grand Master Wizard - Sovereign meritocracy

Map-only locations

The two official maps show many locations that have never been mentioned or seen in the show. Nothing is known about them other than what appears on the maps.

On the color map, a Mystery Temple appears on an island off the east coast of Ooo. It resembles a Mesoamerican pyramid. Also on the color map, the Fire Kingdom is labeled "Burning Lands" and the Grass Lands are called the "Verdant Plains." An area called "Red Rock Cliffs" might correspond to Red Rock Pass, and a note indicates that Marceline's cave is located there.

On the black-and-white map, there are many places that have never been seen in the show. To the north of Ooo is the Sea of Something, which contains a small island chain called the Shiney Isles, which appear to have crystals on them. The warrior known as The Farm hails from this island chain. On a northern peninsula near the Ice Kingdom are the Unknown Lands. In the comic, this place seems to have a purple hue. A cloud or island in the northwest corner of the map is called the Cloud Forest, which appears to be covered in clouds with trees on top of them.

The Sea of Sure Death is off of the southwest coast of Ooo, near the Lost Cliffs. The map shows a dragon in the sea near there. The Isle of Steam appears off the coast of Ooo next to the Fire Kingdom. Just to the south of it is the mysterious Chicken Blood Cove. The Squid Ink Sea is to the southeast of Ooo, and features several unidentified islands. In the ocean near there is a Whirlpool of Sharks. The Floating Gems appear to be diamond-cut isles floating in the sea on the easternmost edge of the Land of Ooo.

The Haunted Swamp is just east of the Grass Lands and north of the Spooky Forest. Strangely, in the hologram map that appears in "The Other Tarts," it is labeled "The Haunted Swan," though this is likely an error. The Hole Near the Center of the World is, as its name suggests, a hole near the middle of Ooo.

Post-apocalyptic setting

Pendleton Ward, the creator of Adventure Time, has stated both in an interview[1] and in his FAQ page[2] that the Land of Ooo is actually a post-apocalyptic Earth, the result of a global disaster called the Mushroom War, hence the ruined pieces of modern technology scattered across the land. From ”Son of Mars“ and "Orgalorg", it is revealed that Ooo is very close to the massive crater if not inside it; The Crater seemed to be covering what used to be Europe.

It is possible that Finn may be the sole human being left in Ooo. It is also possible that the Mushroom War is responsible for killing off all the other humans, or that they mutated into the current and varied inhabitants of the planet. In "Her Parents," Lady Rainicorn's parents mention that they wanted to eat Finn because they never thought they would get the chance to eat an actual human, implying they are either extremely rare or extinct.

http://adventuretime.wikia.com/wiki/Land_of_Ooo