Rhodes is the largest of the Dodecanese islands of Greece and is their historical capital; it is the ninth largest island in the Mediterranean Sea . Administratively, the island forms a separate municipality within the Rhodes regional unit , which is part of the South Aegean administrative region . The principal town of the island and seat of the municipality is the city of Rhodes , which had 50,636 inhabitants in 2011. In 2022, the island had a population of 125,113 people. It is located northeast of Crete and southeast of Athens . Rhodes has several nicknames, such as "Island of the Sun" due to its patron sun god Helios , "The Pearl Island", and "The Island of the Knights", named after the Knights of Saint John of Jerusalem , who ruled the island from 1310 to 1522. Historically, Rhodes was famous for the Colossus of Rhodes , one of the Seven Wonders of the Ancie...