The Devil's Castle is a very dark and spooky castle located in the Devil's Hand. It is the place where Lucifer and many other demons live and is also where the Sleeping Princess is placed in. This castle is only seen in the second Dragon Ball movie, Dragon Ball: Sleeping Princess in Devil's Castle, when Goku and Krillin race to the castle to get the princess for Master Roshi.
The castle is later destroyed when Lucifer's cannon shoots the area with a powerful red blast. When Goku and Krillin got back to Master Roshi's house, they tried to tell him that they did not find the princess, but Roshi mistakes Launch for the princess.