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

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

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

The largest and best-preserved rotunda in Prague.

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

Dedicated to the works of the legendary special effects artist.

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

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

A saintly relic hidden in a Prague church basement.

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

Macabre astrological automaton clock dating to the late 1400s.

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

This monumental neo-Renaissance tomb in Vyšehrad Cemetery is the final resting place for Czech cultural legends.

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

The statue of a cursed knight is said to come to life every 100 years.

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

This spooky statue sits outside a famous Prague theater.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

The first museum in the world devoted to sexual gadgetry.

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

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

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