This hidden alley near the location of Rome's first theater was the site of a curious miracle.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

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

A fortified medieval basilica on the Caelian Hill preserves extraordinary frescoes and one of Rome's most beautiful hidden cloisters.

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

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

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

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

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

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

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.

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

Gods clash with machines in a power plant regenerated as a museum.

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

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

A modern sliver of architecture in Roma.

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

This curious, round temple is the oldest still-standing marble building in Rome.

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

A Nesting Doll of Churches.

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

Architectureal fantasy quarter of Rome.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.