Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

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

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

Mysterious standing stone formations looks like a petrified forest.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

Nordic giants resurrected from the sea and restored to their former greatness.

These ancient rune stones plucked from the countryside now call this university park home.

One of the world's largest collections of medieval religious art.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

Museum preserving torture methods from the past.

The world's only museum devoted to the wonders of fluorescence.

These natural stone bridges are the largest on the European continent.

This Romanian village may have been drowned, but it is long from forgotten.

17th century palace once a meeting place for politicians.

Serbia's master of striking memorials erected a forgotten, hidden gem in the hills outside a tiny village.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Gargoyle head that brings good luck.

A creepy statue of a hooded ghost hauls itself up from the water in a historic Lithuanian city.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

A collection documenting Nazi occupation of Norway, including a painting believed to be made by Hitler.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.