St. Francesca Romana, patron saint of drivers, resides in the church she founded.

Inside this building is another country within Rome, a sovereign entity without a physical territory.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

One of the most important yet well-hidden museums dedicated to the history of medicine.

The Pope’s secret escape route.

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.

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

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

These spartan apartments are provided to clergymen visiting Vatican City.

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.

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

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

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

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

Remnants of a 4th-century church with vivid medieval frescoes and ancient sarcophagi hide beneath this old basilica.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

The mystic whose incorrupt corpse still attracts the faithful.

A small cell adjacent to this church was once the bedroom for a renowned saint.

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