Abandoned medieval hill town.

Ruins of a 10th century church tucked away deep in a botanical garden.

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

A hospital where antique dolls are given new life.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

This 16th-century monastery has been turned into a surrealist architecture compound.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

Crushed coral and crystals give the sand its signature coloration.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

An Italian hillside ghost town.

Go inside to really appreciate this 500-year-old technological masterpiece.

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

Pompeii's less famous neighbor is still revealing her secrets.

Renaissance villa and gardens complete with a tormented colossus.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A submerged archeological park still holds the wonders of a Roman Sodom.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.