Map of the Land of Ooo

The Land of Aaa.

The Land of Aaa is the main setting of Adventure Time with Fionna and Cake and the home continent to Fionna and Cake, as well many of their friends and foes. It and Ooo are seperated by mountains. The Ice King made it up in his fan-fiction. Either way, Ooo and Aaa never seen each other. Many, or possibly most of the characters are just gender-swapped versions of the Finn and Jake characters.