Ferdinand Cheval spent his career as a French postman with an unusual hobby: After tripping over an unusual stone, Cheval began collecting small stones each day. This wasn’t any ordinary collection, either: Cheval used the stones to create the -palace of his dreams. It’s called the “Palais Ideale,” and Cheval began construction in 1879. It’s located near his home in Drome, France, and the palace is absolutely jaw-dropping. Over the course of 20 years, Cheval used cement, lime, and mortar to piece the stones together into something magical. Today, it stands as one of the most unusual attractions in France.