The Cyclades is a group of Greek islands, southeast of the mainland in the Aegean Sea. It centers on uninhabited Delos, considered the birthplace of Apollo, and home to some of Greece’s most important archaeological ruins. Many of the islands are popular holiday destinations, known for their beaches, ancient sites, rugged landscapes and traditional blue-and-white stucco towns overlooking the sea. The Cyclades comprise about 220 islands, the major ones being Amorgos, Anafi, Andros, Antiparos, Delos, Ios, Kea, Kimolos, Kythnos, Milos, Mykonos, Naxos, Paros, Folegandros, Serifos, Sifnos, Sikinos, Syros, Tinos, and Thira or Santoríni