Worlds in Kingdom Hearts Birth by Sleep are areas that serve as the levels of the game. Each world is either based on an existing Disney movie property, or is an original Kingdom Hearts property.
Quick World List
100 Acre Wood - Castle Oblivion - Castle of Dreams - Deep Space - Destiny Islands - Disney Town - Dive to the Heart - Dwarf Woodlands - Enchanted Dominion - Keyblade Graveyard - Land of Departure - Mirage Arena - Neverland - Olympus Coliseum - Radiant Garden - Realm of Darkness - The Mysterious Tower
Worlds
World Map
