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

The meaning behind this triumphal Roman arch was a mystery until the early 20th century.

This mysterious chalk figure of a horse has been recreated and restored for more than a century.

Once a train station along the Great Eastern Railway this vibrant coffee shop and bar is where members of London’s creative class mingle.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

Charles Babbage's proto-computer, painstakingly brought to life.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

Ancient cliffs resembling a kilt on Scotland’s second-largest island emit an entrancing sound.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

This tangled English forest looks like something right out of a fairytale.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

A student driver's nightmare.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

Banksy gives themself artistic license with this piece of London street art.

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

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

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

This hidden alley near the location of Rome's first theater was the site of a curious miracle.