A detailed pachyderm supports Rome's smallest Egyptian obelisk.

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

This ancient Roman arch misled treasure hunters for centuries.

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

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.

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

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

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

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

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

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

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

A modern sliver of architecture in Roma.

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

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

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

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

A hospital where antique dolls are given new life.

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

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

This small Roman arch was transformed into a dwelling by the founder of the Trinitarian Order.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.