Three underground crypts and a pointed arch under the bell tower make this cathedral unique among Romanesque churches.

Geometry and mystery come together in an epic show of octagonal masonry.

An Italian hillside ghost town.

A long-buried ancient ruin unearthed right in the middle of the city.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

A dead saint, a deadly poison, and a mysterious holy ooze.

The sunlight passing through the opening of this huge cave system creates a magical effect.

Southern Italy's spinning top village.