Countless grotesque faces stare out from this eerie Prague art wall.

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

Macabre astrological automaton clock dating to the late 1400s.

This concrete residential area doubles as an open-air gallery.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

A slice of central Asia in the middle of Berlin.

A relic from the Industrial Revolution got a second life as a contemporary performing arts space.

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

A crumbling World War I fort that is reached through a series of concrete tunnels.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

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

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

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

A miniature train-ride through Slovenia's largest cave system.

This one-time health resort was used by aristocrats around the world.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

The shell of a medieval fortress offers commanding views of the area it once protected.

Double spiral staircases are not unheard of, but they are very rare.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

These spooky and unusual stone formations create an underworldly landscape.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

Museum dedicated to wax representations of disfiguring diseases.