The Treasure Museum is a large building. It holds many exhibits, such as the Gargantuan Gallery.
The Treasure Museum's exterior is primarily tan. Several pillars support its triangular roof. Most of the museum's rooms include a red carpet and wooden doors.
The Treasure Museum has appeared in two episodes of The Backyardigans: "Secret Mission" from season one and "Who Goes There?" from season three. In the latter episode, it is seen as a painting in the art museum.