A monolithic monument in Greater London.

In 1329, Christine Carpenter entered this small stone cell in the hopes of becoming a living saint.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

Despite the name, this ancient piece of crystal may not have been a lens at all.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

A cluttered and astounding collection of antiquities and curiosities.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

The Ranger’s House exhibits fine mementos collected by Sir Julius Werner during the course of his life, including this infamous pendant.

These stained-glass windows are all that remains of a building that was the target of one of the biggest explosions in London after World War II.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

This South London cemetery holds the remains of more than 15,000 people.

This mysterious pyramid is said to be part of a complex web of occult and Freemason symbols.

This historic London residence was once the womb of Scientology.

Eyam took steps to quarantine themselves and keep the plague from spreading.

Black cat statues guard this temple-like Egyptian revival factory.

Catacombs turned marketplace.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

The anatomical-pathological collection of a man who changed surgery.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Cliffs full of fossils at the portal to England's Jurassic Coast.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.