A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Bohemian paradise covered in majestic forests.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

A Jenga-style cylindrical tower of books that appears to go on forever.

Macabre astrological automaton clock dating to the late 1400s.

The oldest Buddhist monastery in Mongolia has survived centuries of invasions, political shifts, and religious purges.

The grassy landscape is home to the world's last truly wild horses.

Enormous statue of the Emperor of the Mongols.

A unique attraction and museum dedicated to exploring iconic roadside structures.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

The largest whale museum in Europe allows visitors to walk among life-size giants.

This beautiful, historic church looks like something out of a simpler past.

Walk in the footsteps of the gods and straddle two tectonic plates.

Medicinal spa created with the discharge from a geothermal energy plant.

Eerie ruins of an abandoned medieval fishing village crumble atop an unforgiving stretch of earth.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

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

Iceland's largest lagoon is home to stunning multi-colored icebergs.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.