The Gorgs' Castle is home to the royal Gorg family on Fraggle Rock. Considering Pa and Ma Gorg's stature as king and queen of the Universe, the castle is a modest structure, with no more than two levels apparent from the exterior shots.
The interior of the Gorgs' castle has been seen in a few Fraggle Rock episodes, including "Blanket of Snow, Blanket of Woe", in which Mokey and Gobo find themselves in the Gorgs' kitchen. Another episode in which the Gorgs' castle interior was seen for a fairly brief moment was "The Lost Treasure of the Fraggles". The episode "Junior Faces the Music" even gives glimpses into the royal couple's bed chambers.