Macabre astrological automaton clock dating to the late 1400s.

Bell tower juts out from a village buried under a lake.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

This Gothic church was wheeled in its entirety to a new location a half a mile away.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

The majority of the highest mountain in Poland is actually located in a different country.

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

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Tiny communists hammer away on the Olomouc Astronomical Clock.

Bohemian paradise covered in majestic forests.

Ruins of a German Castle on top of a towering stone pillar.

A Cold War secret surveillance tower used to spy on radio communications.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

The 14th-century ruins are said to contain healing powers.