The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

Inside this museum, visitors venture through ghost stories entrenched in Icelandic folklore.

Also known as "Robin Hood's tree," this tree became a famed location along Hadrian's Wall before it was cut down in an act of vandalism.

In the middle of a barren moorland, the remnants of a lost British Space Age stand like a 20th-century Stonehenge.

England's "pier at the end of the universe" unites astronomy and contemporary architecture.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

As part of an 800-year-old tradition, a man parades through town covered in a suit made out of spiky burrs.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This tiny islet has somehow housed an ancient temple, two monasteries, a church, a fortress, and a restaurant.

This Paleolithic cave may be the oldest cemetery in North Africa.

Reaching this rock formation involves a hike through rocky rapids and springs where wild turtles reproduce.

In this desolate valley resides a gorgeous set of rocks sporting a technicolor design.

One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

Designed as a labyrinth, this subterranean prison was crafted without bars or doors.

Traditional 11th-century outdoor tannery.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

Rocky Atlantic beach home to a stunning stone arch.

The other side is actually green.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

One of the most spectacular canyons in the world.