One of the few cold geysers in Europe, its eruptions are powered by carbon dioxide.

This tile-work piece featuring a chicken riding in carriage is both a remarkable artistic creation and a social commentary of politics and culture in 17th-century Portugal.

Iron Age runes and ruins hide in plain sight along this Portuguese beach.

A Himalayan monastery claims to have a piece of a centuries-old abominable snowman.

Folky pharmaceuticals abound in this medicinal reliquary.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

In Kazakhstan, a colorful cathedral with many lives once survived the most powerful earthquake in the region.

A tiny museum dedicated exclusively to the tiny art that decorates matchboxes.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an eighth-century Buddhist master.

This Minsk museum has cat coffee, cat chess, cat art, and even a cat "staff," which visitors are free to take home.

The Andean town where every single building is decorated with a brightly colored frieze.

Collection of fossils, plants, and ancient animals encased in amber.

Home of the "true" equator.

Few people have ever heard of, let alone visited, one of Turkmenistan’s most impressive natural attractions.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

This once-derelict building is now one of the most beautiful bookstores in the world.

A cluster of headless, armless sculptures looms within a popular Polish park.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.