Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

Architectural monsters are devouring this palace's every door and window.

An alchemist's “magic door” stands in the middle of a Roman park.

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

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

This ancient Roman arch misled treasure hunters for centuries.

The "Great Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

Breathtaking and huge 430 year old maps of Italy.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

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

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

Erotic art covers the walls of the largest ancient pleasure palace.

The walls and streets of the ancient city are peppered with penises.

Ancient snack bar of the Roman Empire re-opened.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

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

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

The world's largest rotating world.

A treasure trove of rare and fine fabrics from around the world.