Bodrum (Turkish: Bodrum from Petronium; formerly Halicarnassus (Turkish: Halikarnas, Ancient Greek: Αλικαρνασσός)) is a Turkish port in Muğla Province. It is on the Bodrum Peninsula, near the northwest entrance to the Gulf of Gökova, and faces the Greek island of [[Kos. Today, it is a center of tourism and yachting. The city was called Halicarnassus of Caria in ancient times. The Mausoleum of Mausolus was there, one of the Seven Wonders of the Ancient World. Bodrum Castle, built by the Crusaders overlooks the harbor and the International Marina. The castle grounds includes a Museum of Underwater Archeology and hosts several cultural festivals throughout the year. The region includes the municipalities of Bodrum, Turgutreis, Ortakent, Turkbuku, Yalikavak, Gumusluk which are composed of a number of recent tourist-oriented developments alongside older village centers.