The Gravity Falls History Museum is a museum detailing the history of the town of Gravity Falls. It shows various pieces from throughout the town's history, and has a major role in Pioneer Day. Inside is a library.
History
During Pioneer Day, Dipper and Mabel follow a map hidden inside of the book, 3, to the museum, hoping to find who the true founder of Gravity Falls was. There, they find a strange piece of abstract art that's the same shape as a picture on the map. Not knowing what to make of it, Mabel lays on the bench in front of it upside down. She then realizes that the piece is actually a statue of an angel pointing upside down, pointing towards the town's cemetery, where an identical statue lies.