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

This is the oldest Roman-made bridge in the city still existing in its original state.

This small church was constructed over the ruins of three temples dating to the Roman Republic.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

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

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

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

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

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

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

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A large replica of a monumental Roman inscription is located on the side of this museum.

This large, circular tomb is the final resting place of the first emperor of Rome.

Breathtaking and huge 430 year old maps of Italy.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Numerous stone coffins from different centuries, lined up in a sixth century basilica.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

The roof of this ancient mausoleum is made from a single Istrian stone weighing a massive 230 tons.

One of the largest squares in Europe contains an entire artificial island.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

Pilgrimage site for star-crossed lovers.