A little sculpture with a large wardrobe.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

The last bastion of Roman presence north of the Alps looms over a German town.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

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

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

The secret medieval communication system will whisk your words above the noise of the crowd.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

The mark of the Devil's horns on a marble column in Milan.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

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

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

Where the lovelorn find a home for their sentimental keepsakes.

Breathtaking and huge 430 year old maps of Italy.

The Pope’s secret escape route.

A collection of objects supposedly singed by the hands of souls in purgatory.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.