The Gravity Falls Museum of History is a museum detailing the history of the town of Gravity Falls. It shows various statue pieces from throughout the town's history, and has free admission on Pioneer Day. In addition to its recreational service, the museum was also the former headquarters of the Blind Eye Society.
In "Irrational Treasure," during Pioneer Day, Dipper and Mabel follow a mysterious map found inside of Journal 3 to the museum, hoping to discover the town's true founder. They discover a piece of abstract art in the same shape of their map, and upon lying upside down on a bench, Mabel inadvertently discovers it is, in actuality, depicting an angel statue located in the town's cemetery.
The twins (along with Soos and Wendy) return to the museum in "Society of the Blind Eye," on the hunt to uncover Old Man McGucket's past. Once inside, they discover the entrance to the Headquarters of the Blind Eye Society, and clash with the Society itself. They eventually manage to erase the Society's memories, convincing them that they were at the museum for the "Gold Miner Appreciation Night," and sending them on their way.
- 108. "Irrational Treasure"
- 207. "Society of the Blind Eye"
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