The 16th-century son of Sienese nobility carved this hermitage out of volcanic rock.

Largest necropolis in the Mediterranean.

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

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

This lesser-known leaning tower is all that remains of the medieval castle of Vernazzano.

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

Water and windows define this defensive Italian well.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

Anatomical cabinet holds unexpected treasures.

A lover's walk between hilltop towns, decorated with graffiti love notes.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

Vast network of air raid tunnels beneath Lombardy's capital.

Get buzzed beholding one of the world's largest coffee-machine collections, then step into the café for a specially brewed cup.

Abandoned medieval hill town.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

A schoolhouse and chapel are all that remains of this alpine village.

A once-luxurious, now abandoned hotel in the Italian Alps.

A top-secret bunker now turned museum, is an eerie look at what life would have looked like in the event of nuclear war.

An ancient pagan site swirling with legends in the foothills of Franconian Switzerland.

As lake waters recede, a German village reemerges after more than a hundred years.

Crop circles inspired this whimsical garden in Germany.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.