Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Ancient snack bar of the Roman Empire re-opened.

The world's most active stratovolcano is almost always erupting.

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

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Pilgrimage site for star-crossed lovers.

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

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

2300-year-old Roman road connecting the empire.

The glowing blue Nymphaeum of Emperor Tiberius.

The middle finger of modernity.

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

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

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A 16th-century horror show built in a lovely Italian garden.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

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

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

The birthplace of the builder of the Statue of Liberty is now a museum dedicated to his work.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.