This artificial cave looks like something out of a fairytale.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

A giant interactive periodic table with real samples of the elements.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

A Baroque mansion with ties to legendary magicians and alchemists.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

A saintly relic hidden in a Prague church basement.

The largest and best-preserved rotunda in Prague.

According to local legend, the devil shattered this column after losing a bet.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Dedicated to the works of the legendary special effects artist.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

This moving sculpture depicts contortionist positions based on photographs of gymnast Věra Čáslavská, who protested the Soviet invasion of Czechoslovakia.

Dedicated to the "father of modern education," this museum documents the history of education in Czechia.

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

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

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.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

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

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

The medieval "Bearded Man" relief still serves as a clever flood warning marker.