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The castle's exterior is light brown. It has a dark brown drawbridge and a moat in front of it. There are small, rectangular windows on each side of the castle. It is identical to Cliff Top Castle.
King Pablo's castle has appeared in four episodes of The Backyardigans. It is first seen in a photograph in "What's Bugging You?" from season three. It is later shown in "Tale of the Mighty Knights: Part 1", "Tale of the Mighty Knights: Part 2", and "The Tale of the Not-So-Nice Dragon".