This 12th- to 13th-century Norman castle was built over the Temple of Venus, long a site of worship for the ancient Elymians, Phoenicians, Greeks and Romans. Nowadays the castle's rooms are off-limits, but visitors can explore the grassy interior courtyard, filled with ruined foundations and flanked by an impressive stone wall allegedly built by Daedalus. Stealing the show are the spectacular panoramic vistas extending to San Vito Lo Capo on one side and the Saline di Trapani on the other.