The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

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

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

Giant marble phalluses on the sacred island of antiquity.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

Hideout of thieves, monks, and goat-footed gods.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

Leveled by an earthquake, this Italian village is now preserved as a massive concrete art project.

This overgrown mountain village has been abandoned for nearly a century.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.

This breathtaking monastery was established by Saint Benedict himself 1,500 years ago.

Abandoned village in Sicily built during the agricultural reforms of Mussolini.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

A beautiful discovery site of prehistoric burials.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

The world's largest bamboo labyrinth is a living demonstration of the plant’s immense potential.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.