Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

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

Enormous sandstone towers loom within a Czech forest.

Monument to a suicide protesting the Soviet invasion.

The last municipal pneumatic post system in the world was in operation for over 100 years, and may run again.

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

This spooky statue sits outside a famous Prague theater.

A bus with a butt and biceps to put Olympic athletes to shame.

A crucified and bearded female saint.

The oldest garden in Prague, once part of an medieval orchard.

Mummified monks and the accidentally interred, in a 17th-century crypt.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

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

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

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

Bohemian paradise covered in majestic forests.

Looming communist pillar with a Czech twist.

This former quarry is now a picturesque gorge that hides a sunken lake.

A series of playful yellow penguins share a serious message about the environment.

A spiral staircase twists to the top of this unusual Czech lookout tower.

An existential riddle in the world's largest ancient castle.

A saintly relic hidden in a Prague church basement.