This coffee shop lies hidden beneath a historic church.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

This inn of the court provides a fascinating window into London’s legal and architectural history.

This underpass became an unlikely piece of cinematic history after its appearance in 'A Clockwork Orange.'

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

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

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

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

This statue is the only female representation of Rome's "talking statues."

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

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

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

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

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

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

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

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

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

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

This incredible second-century sculpture depicts a trio of gods worshipped by the ancient Romans.

A tiny replica of the iconic London landmark hides on the side of the steel structure.