Visitors flock to the historic birthplace of radiobalneology for its therapeutic radium treatments.

Before serving as James Bond's Casino Royale, this Victorian-era spa catered to the world's elite.

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

In a lighthouse by a vanished sea stands a museum for a man who never existed.

Bohemian paradise covered in majestic forests.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

Two monstrous faces loom over a village in Czechia.

Human figures and faces are carved into the sandstone surrounding this cave in Czechia.

Every part of this unusual home is built into the sandstone rock.

A massive, abstract lookout tower providing a panoramic view of Prague.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

A popular European tradition makes its way to the states on one of America's most famous bridges.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

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.

A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

This replica Viking village was created for a film that was never shot and is now open to visitors.

These concrete domes were installed on an Icelandic bluff to honor a very specific musical tradion.

An isolated, rusty phone booth commemorates Iceland's first international telegraph cable.

This former quarry is now a picturesque gorge that hides a sunken lake.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

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

A church of bones, decorated with 40,000 human skeletons.