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

This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

England's most notorious suicide spot.

Famously misunderstood wonder of the ancient world

Hidden in plain sight, this creepy sculpture watches from above.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

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

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.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.