An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

According to legend, this tomb holds the secrets to time travel.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

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

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This little Greek plateau is home to thousands of rustic, white-sailed windmills.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

The wreck of a B-29 Superfortress now stands as a memorial left in the moors.

A tiny, heartwarming piece of art hiding in plain sight.

The remnants of a depressing public toilet are now a hub of ever evolving street art.

A giant wooden soda bottle pays homage to a distinctly British drink on the very spot where it was invented.

Have a seat with the father of modern computing at this Manchester monument.

One man and his dog, immortalized in a giant statue.

A plaque marks the underground site of one of London's "lost rivers."

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Left by the Devil, an ancient quarry or just plain old erosion, this enigmatic rock pillar rises 28 feet from the hillside.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

The sole surviving medieval street cross in Scarborough.

Locals spent years successfully fighting to save this beloved Brutalist behemoth from demolition.

These giant sculptures are supported by a bizarre menagerie of feet.

The world’s oldest surviving single-arch railway bridge.