This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

An ancient necropolis of magnificent tombs.

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

Architectural monsters are devouring this palace's every door and window.

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

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

A large replica of a monumental Roman inscription is located on the side of this museum.

A Nesting Doll of Churches.

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

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

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

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

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

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

A Roman spa buried deep beneath the City of London.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The Great Fire of London and the regulation of one-way streets both started in this alley.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

Rebuilt remains of a temple to Roman god Mithras.

The last four extravagant street signs of London's historic banking street.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.