Breathtaking and huge 430 year old maps of Italy.

A huge enchanting public park just outside the ancient walls of Rome.

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

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

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

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

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

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

The yawning maw of this pagan visage is said to bite off the hands of liars.

A rare example of a medieval house in Rome adorned with a melancholic inscription.

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

Plaques on its facade commemorate the Tiber's most destructive deluges.

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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

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

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

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

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

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

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

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

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.