Santorini, also know as Thera, is widely considered to be Greece's most spectacular island. Thousands of tourists come every year to gape at the caldera of this volcano, a vestige of what was probably the world's largest volcanic eruption ever.

This eruption, which occurred sometime around 1450 BC, caused the middle of the volcano to sink, leaving a caldera of high cliffs, one of the world's most dramatic geographic spectacles.
There is a theory, one that has fired the imagination of writers, artists and mystics since ancient times, that postulates that the island was part of the lost continent of Atlantis.


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