This Polish cave has housed a dragon, a brothel, and an enduring legend.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

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

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.

Looming communist pillar with a Czech twist.

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

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

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

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

A surreal statue honoring Prague's favorite literary son.

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

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

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

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

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

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

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

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

Macabre astrological automaton clock dating to the late 1400s.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

A field of nothing but boulders which resembles a giant's gravel driveway.

Century-old shop, specializing in Occult products.