A UFO-shaped event building originally intended to be a science museum showcasing the future.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

The castle that provided the setting for much of 'Monty Python and the Holy Grail' is now a pilgrimage site for fans.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The hallucinogenic center of the ancient world.

This town is home to the world’s largest arch constructed entirely of elk antlers.

This 135-year-old weather station studied the effects of the climate on human health.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A musical instrument played by the sea.

Climb into Albania's communist history while enjoying a spectacular ocean view.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This is what trains will look like after the zombie apocalypse.

Dozens of rockets and missiles are on display outside a testing facility in the Utah desert.

Art Deco stylings conceal the true nature of this bridge.

The yawning maw of this pagan visage is said to bite off the hands of liars.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

US-50 in Nevada is known as "the Loneliest Road in America," but this earlier iteration of the route is even lonelier.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

This controversial monument was designed to lionize the Red Army, but also disheartened the Latvian people.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.