Santorini, Greece

Santorini, classically Thera, and officially Thira, is an island in the southern Aegean Sea, about 200 km southeast of Greece’s mainland. It is the largest island of a small, circular archipelago which bears the same name and is the remnant of a volcanic caldera. It forms the southernmost member of the Cyclades group of islands, with an area of approximately 73 km² and a 2011 census population of 15,550.