This dazzling wooden church was constructed as part of an elaborate peace project after the Thirty Years' War.

The largest and best-preserved rotunda in Prague.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

The world's largest underwater restaurant is submerged off the southern tip of Norway.

A tree that defies gravity grows in an ancient ruin.

A collection of modern and vintage pinball machines housed in the cellar of a 15th-century building.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

Warsaw's fantastically preserved gasworks...almost.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

Dedicated to the man who saved hundreds of children from Nazi-occupied Czechoslovakia.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

A surreal statue honoring Prague's favorite literary son.

This spooky statue sits outside a famous Prague theater.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Looming communist pillar with a Czech twist.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

This automated sculpture of two men peeing will spell out text messages with their micturition.

This artificial cave looks like something out of a fairytale.