The town's history in watchmaking is documented at one of the world's premier horological museums, the Musée d'Horlogerie du Locle, Monts Castle, located in a 19th-century country manor on a hill north of the city Watchmaking museum Restored historic underground mills (grainmill, oilmill, sawmill) can be seen in a cave located about one kilometer ( 1.0 kilometers ) west of the city center. [