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

This ancient market is often referred to as the oldest shopping mall in the world.

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

This statue is the only female representation of Rome's "talking statues."

This ancient Roman arch misled treasure hunters for centuries.

The underground sanctuary of a mysterious ancient cult.

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

The remains of the left arm of the levitating philosopher-saint are kept in a 13th-century Neapolitan basilica.

The middle finger of modernity.

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

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Secret refuge and museum of the Duke of Florence.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

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

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

The only museum with its curator—and her pets—buried inside.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Two stone columns flank the grand Venice square, but there were supposed to be three.

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

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

100 year tradition of fist fights, marked by marble footsteps.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

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