One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

Breathtaking and huge 430 year old maps of Italy.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

These hut foundations are believed to be the residence of Romulus, founder of Rome.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

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

A colossal aqueduct from the second century B.C., deeply hidden in a gorge on the outskirts of Rome.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

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

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

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

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

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

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

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

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

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.

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

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

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

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