Erected in 1860 as a church, this building was turned into a museum a century later, complete with a half-size replica of Provincetown's famed race-winning schooner Rose Dorothea. When the museum went bust, the town converted the building to a library. One catch: the boat, which occupies the building's upper deck, was too big to remove – so it's still there, with bookshelves built around it. Pop upstairs and take a look.