Huge stairway leads to this massive gallery.

A UNESCO-protected spiritual seat of the Old Serbian Kingdom and Empire.

A 14th-century Serbian Orthodox church that was once converted into a mosque under the much-disfavored Ottoman Empire.

Epicurean and holy traditions converge in what may be the oldest restaurant in Europe.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

This lonely minaret with an unusual decorative symbol is all that remains of a historic Ottoman mosque.

The rock carving that became an internet meme.

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.

A Baroque mansion with ties to legendary magicians and alchemists.

Dedicated to the man who saved hundreds of children from Nazi-occupied Czechoslovakia.

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

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

This spooky statue sits outside a famous Prague theater.

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

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

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.

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

The ruins of a sixth-century monastery sit on the banks of the River Shannon.

A set of outdoor stairs named in honor of a famous Austrian artist.

This 17th-century Portuguese fort now houses a nautical museum.