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

Dedicated to the history of mining and minting in a region rich in silver and radium.

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

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

This doorless 20th-century elevator doesn't stop or slow down.

A Jenga-style cylindrical tower of books that appears to go on forever.

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

A surreal statue honoring Prague's favorite literary son.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

Macabre astrological automaton clock dating to the late 1400s.

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

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

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.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

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

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Steadily reminding Czechia of its past.

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.

Be(w)ar(e) the moat around this historic Czech castle.

Enormous sandstone towers loom within a Czech forest.