The Unknown Burning City was a flaming city from which Finn and Jake rescued Stanley and his family in "The Jiggler". The citizens of the city could be heard screaming while Finn and Jake walked away screaming.
Appearance[]
Other than the fire, it appears to be a town sculpted out of rock with futuristic pillars sticking out of it. It resides in the middle of a pit and needs a bridge to access it. Around that are many jagged, bone-looking spikes.