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

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

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

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

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

These hut foundations are believed to be the residence of Romulus, founder of Rome.

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

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

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

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

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

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

A rather vulgar example of the transition from Latin to the Italian vernacular.

This ancient Roman arch misled treasure hunters for centuries.

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

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

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

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

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

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

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