Rhodes (Greek: Ρόδος, Ródos, [ˈroðos]) is a Greek island approximately 18 kilometres (11 mi) southwest of Turkey in the eastern Aegean Sea. It is the largest of the Dodecanese islands in terms of both land area and population. Historically, Rhodes was famous worldwide for the Colossus of Rhodes, one of the Seven Wonders of the Ancient World. The medieval Old Town of the City of Rhodes has been declared a World Heritage Site. The major industry is tourism.