A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

The bright red cars take travelers through breathtaking Tuscan scenery.

142 ceramic steps become a mosaic once a year.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

Artist Diego Morlin's war between the natural and human worlds is a wanderer's delight.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

An unusual "skull with ears" sits in the crypt of this small church tucked away at the end of a narrow alley.

An Italian geologic wonder that served as the inspiration for the landscape of Dante's hell.

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

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

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

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

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

A gorgeous medieval library where the books are kept in chains.

A fascinating assortment of cave dwellings, medieval ruins, and sarcophagi are being devoured by the forest.

A line of abandoned, alien-like fortresses dot the mountains of North Italy.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.

An eerie, little-known Neapolitan museum filled with preserved human remains.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

A spiritual sanctuary in a natural cave.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

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

The ruins of an abbey believed to have been founded by Charlemagne in the 9th century.