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

Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

The hidden lair of an alchemist rediscovered in a 2002 flood.

This artificial cave looks like something out of a fairytale.

Walk through Czech history in Prague's largest graveyard.

This historic observatory was established to keep shipwrecks from littering the Cape of Good Hope.

Caves full of Buddhist statues, incredible rock formations and a deserted lagoon.

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

South Africa's postal service began with a letter left in a boot beneath this tree.

An hour south of Punta Arenas (Chile) along the Strait of Magellan, a Kcymaerxthaere plaque tells the story of Culev Larsze, cursed to live without words in the fictional world of Kcymaerxthaere.

This plaza at the end of the world teems with monumental tributes to a problematic history, and laser discs.

This large round boulder is said to emit spiritual power, but it may just be magnets.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

Rare mummified forest could offers a glimpse into how our environment has been changed by humans.

A unique waterfall that some believe attracts the fairfolk.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

The world's largest collection of witchcraft regalia.

A pagan tradition of draping trees with rags eerily lives on.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

This stately estate house features a tower covered in a bright, modern mural.

A pub that is literally in the middle of nowhere, but continues to do business.

The heads of two giant mythological water horses honor Scotland's horselord past.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A 30-acre garden inspired by the principles of modern physics.