The enigmatic sculpture hides above an escalator in a Milan metro station.

A single column facing the sea is all that's left of one of the most important temples of Magna Graecia.

This building features dozens of faces along its facade, although one is a bit chilling.

Caligula's colossal pleasure ships, discovered by Mussolini only to be lost in flames.

This Italian ski resort rose to fame when Benito Mussolini was held prisoner there and then rescued by the SS.

The leathery remains of a woman who died in the 13th century now lie in a church named for her.

One of the oldest libraries in the world is still operating and contains the oldest existing document in the Italian language.

A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

An unusual resting place built into the hill with an amazing view of Lake Como.

These artificial caves crafted by ancient Romans were elaborate fish farms for moray eels.

This Roman underground canal was the longest tunnel ever built until the late 19th-century.

The remains of this medieval Roman road and lookout towers dot the rugged coastline of southern Lazio.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

Was this cave created by Hercules's wrath, the devil, or volcanic activity?

A long-buried ancient ruin unearthed right in the middle of the city.

According to the legend, this structure was built in a single night with the help of the devil.

A massive bridge forms part of an aqueduct that was deemed an architectural wonder of its time.

A rare example of a medieval house in Rome adorned with a melancholic inscription.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

This 18th-century dissection theater's frescoes display a gorgeous tension between the terrestrial and esoteric.

For decades, vendors have sold clothes once worn by American soldiers who stormed Italy in the 1940s.

This medieval mountain town is also known as the "Village of Streams."

An ancient Roman temple first dedicated to an emperor's wife is now a church.