This unofficial museum details the rise and fall of Colombia's most notorious narcotrafficker, Pablo Escobar.

Former drug lord’s manor, now a theme park. Watch out for the hippos.

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

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.

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

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A surreal statue honoring Prague's favorite literary son.

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

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

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

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

This spooky statue sits outside a famous Prague theater.

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

Macabre astrological automaton clock dating to the late 1400s.

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

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

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

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

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

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

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

At the site of a graffiti artist's murder, fellow artists gather to pay homage.