This early version of the guillotine was used to execute the man responsible for its construction.

A sweet symbol marks the place where torturous executions were once carried out.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

The patch of land below the memorial was gifted by the British to the United States.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

These abandoned coal mine towers near Sherwood Forest might soon boast the U.K.’s longest zip-line.

The English Civil War began right here in 1642.

The scene of the United Kingdom's most famous UFO incident, dubbed the "British Roswell."

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Home to drunken tower-climbing goats... seriously.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Perhaps the most scandalous statue of America's first president.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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

Fascinating town where normal life interfaces with the occult.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This one has sailed five times as far as Sir Francis Drake's famous ship.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

Astonishing rock formations dot the Brimham Moor landscape.

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

Semi-precious Blue John stones have been mined in this cavern system for centuries.