A beautiful but toxic fountain of mercury.

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

The costumes depict the Kurent, the star character of the annual Kurentovanje festival.

A beautiful drive through the foot of the Alps traces the path of 15th-century Turkish raids.

A cemetery for Slovenian notables also serves as a popular recreation space.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

The "dragon babies" of southeastern Europe.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

This massive subterranean fissure is known as the "underground Grand Canyon."

This region of Slovakia boasts some of the most plentiful opal mines in the world.

A gorgeous stone viaduct crosses over a bucolic valley.

An abandoned 19th-century iron factory perched along the outskirts of an idyllic village.

A line of disused military bunkers built to defend against Nazi invasion lies hidden on the outskirts of the city.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

A perfectly preserved hill village where the buildings are painted like white lace.

What once claimed to be the world's tallest single-family wooden structure house.

This historic system is the zero level benchmark for measuring the depths and altitudes of the Baltic.

You'll find rocket launchers, not rollercoasters, at Russia's “military Disneyland.”

Rare documents, old instruments, and gruesome specimens showcase the history of military medicine.

The mummified remains of Dashi-Dorzho Itigilov, Russia's most important Buddhist.

Russian researchers who have been excavating ancient squirrel burrows may have brought a 32,000-year-old plant back to life.

The world's tallest statue of a woman wields the world's tallest sword and is at risk of toppling over.

A homemade anatomical collection of medical anomalies and accidental catastrophes.