The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

A forgotten "city of water" underneath the famous Trevi district.

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

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

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

2300-year-old Roman road connecting the empire.

The underground sanctuary of a mysterious ancient cult.

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

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Architectureal fantasy quarter of Rome.

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

700 iron sculptures crammed into a Mediterranean park.

Roman-era ships unearthed...

The experimental test tracks of a retro-futuristic monorail still stand in the French countryside.

Jean Tinguely's bizarre monster sculpture is hidden deep in a forest.

An unusual sand beach in the middle of a forest.

The original movie set for the home of 'Star Wars' hero Luke Skywalker.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

It may seem a little out of place in a tiny village, but the inspiring story of its creation made headlines.

This outcropping was once home to a medieval monastery destroyed during the Ottoman conquest.

A museum dedicated to the former country.

An idyllic traditional timber village on a picturesque hill was built for a film.

Beautifully carved tombstones fill this unmarked graveyard, uniquely situated near the village's famous stone wine cellars.

These natural stone bridges are the largest on the European continent.