The Grass Lands, also known as Verdant Plains, is an area near the center of Ooo. It is home to the Tree Fort which is home to Finn and Jake. The land is a very grassy area filled with hills. The Hot Dog Kingdom can also be found in the Grass Lands, along with many other kingdoms, such as Wildberry Kingdom. Stanley's house is in the grasslands as well as the Jiggler's cave.
It is an area covered with sand and skeleton remains of large fishes. This place also lies the Royal Courthouse, where all royalties join together. This place also has the MO factory, where BMO was made. The Bad lands is located at the southern part of Ooo and is home to many bandits and other evil beings.