An intriguing three-sided folly is a testament to one man's devotion to Catholicism and the number three.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

A little piece of Oxford's overlooked industrial heritage.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

This historic pub is a hidden gem for fans of Lewis Carroll.

Legend says this public grazing area hasn't been plowed for thousands of years.

These ancient ruins were the final resting place of King Henry II's mistress.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

Gods clash with machines in a power plant regenerated as a museum.

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.