Its interior is adorned with some of the best examples of early Christian mosaics.

A wunderkammer of curious objects and intriguing art nestled within a hub of ancient Roman sites.

The former home of an Italian artist is now a shrine to his ambitious works.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

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

This park on the outskirts of Rome boasts two ancient Roman aqueducts and a medieval tower.

The ruins of an abbey believed to have been founded by Charlemagne in the 9th century.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

This subterranean shrine beneath a bike rental store celebrates the iconic Italian scooter.

Ancient ruins hidden underneath a modern luxury hotel.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

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

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

Roman-era ships unearthed...

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

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

The mystic whose incorrupt corpse still attracts the faithful.

This historic recreationist school churns out warriors that may very well have had a fighting chance in Rome's pits of the day.

A modern sliver of architecture in Roma.

Rome's ancient Etruscan rival, now a park full of ruins.

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

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.