Desert of Wonder

The Desert of Wonder' is a location that used to be a city before the Mushroom War occurred. Simon Petrikov and Marceline lived in this city 996 years ago. It is now a desert with some war debris leftover. The Ooze Monsters managed to survive for nearly 1,000 years here, or at least reproduced.

Trivia

 * This is most likely where Candy People originated from, as seen in Simon and Marcy, when the first trace of Candy People appeared as a smile on some bubblegum (presumably Princess Bubblegum's due to her being 100's of years old.)