Greece, Santorini island in the Cyclades archipelago. One of the most photographed sites of Greece and maybe a cliché but undeniable an extraordinary spot. These cliffs are actually crater walls of a volcano that erupted violantly in the 2nd millenium bc, a disaster some people think Plato refers to when he writes about the lost civilisation of Atlantis. The volcano is still active. If iam not mistaken he erupted in the 50s without much damage. But if you vist the cone (a bit to the right of the spot on the photo) you can see the red vulcanic soil, the smoke coming out of the fumeoles and smell the sulpher. This picture shows the capital Fira or Thera which is build on top of the cliff.
If you havent seen santorini visit as soon as possible because its becoming very fast too touristic up market and very expensive.