2Santorini
Officially named Thira, Santorini is a remnant of a volcanic caldera from one of the largest volcanic eruptions in the last 100,000 years. This cataclysmic event had the force of 40,000 Hiroshima bombs ending all life and burying Akrotiri under a thirty-meter blanket of pumice and ash, a true Bronze Age Pompeii, and supposedly ended the Minoan civilization in Crete.