The purported midpoint in London from which all distances are measured has a tragic love story at its core

London's smallest police station is barely the size of a phone booth.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

A naturally mummified 2,000-year-old man.

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.

The bronze uniforms commemorate the vital role of women during World War II.

This coffee shop lies hidden beneath a historic church.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

A quartet of tiled art pieces adorn the floors of this prestigious art museum.

A forgotten underground railway once whooshed trams beneath London.

This enormous sardine in the Segura River pays tribute to an annual post-Lent tradition.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

One of the largest objects salvaged from the famous sunken passenger ship.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

It’s a painted window that looks completely real, hiding on a building in the market square.

One of the largest megalithic complexes in England, which local legend holds is a wedding party turned to stone by the Devil.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

Relive a Polish uprising via an enormous, century-old cyclorama.

The silly symbol for an underground protest group is now scattered around the city.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.