A series of caves, tunnels, and wells filled with fascinating figures and symbols.

A cone-shaped top and cylindrical body set this 900-year-old structure apart from other Italian bell towers.

A massive marble foot is tucked away in a small alley near the Pantheon.

The relics of one of Jesus' 12 apostles are enshrined in this Italian Basilica.

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

A statue representing a lost Roman profession that was vandalized for centuries.

A town saturated in Italian rationalist architecture was once marshland drained by Mussolini.

Church holding the preserved body of a levitating saint.

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

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Massive galleon from a box-office bomb docked in Genoa.

Claude Monet immortalized this medieval bridge in two of his paintings.

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

A mushroom-shaped outcropping that has come to be the symbol for an entire town.

A striped 12th-century basilica sits in the countryside of Sardinia.

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

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

Host to the annual Festival of the Snakes.

A medieval wash house where people washed clothes in a river allegedly formed by the tears of a mourning nymph.

A small Byzantine church lost in the middle of the mountains of southern Italy.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.