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

Architectureal fantasy quarter of Rome.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

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

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

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.

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

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

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

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

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

An alchemist's "magic door" stands in the middle of a Roman park.

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

A sculpture serving as an homage to Pope John Paul II.

A lush indoor jungle fills this bustling Madrid transportation hub.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

The charming storybook building now houses a small police museum.

One of the earliest depictions of an Arthurian scene that is shrouded in mystery.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.