An abandoned Byzantine fortress and notorious prison.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

The rocky remains of an ancient Greek forest.

Where commuters walk through remnants of an ancient Greek necropolis.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.