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

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

A surreal statue honoring Prague's favorite literary son.

The hidden lair of an alchemist rediscovered in a 2002 flood.

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

Macabre astrological automaton clock dating to the late 1400s.

A crucified and bearded female saint.

Microscopic scenes; some call it novelty, some call it art.

Two stunning 17th-century libraries and a cabinet of curiosities.

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.

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

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

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

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

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

A saintly relic hidden in a Prague church basement.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

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

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

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

This spooky statue sits outside a famous Prague theater.

A mocking tribute to the past and modern leadership of Prague.