After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

This man-made mound monument was built out of soil from all across the Polish empire.

A surreal statue honoring Prague's favorite literary son.

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

Looming communist pillar with a Czech twist.

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

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

This automated sculpture of two men peeing will spell out text messages with their micturition.

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

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

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

Countless grotesque faces stare out from this eerie Prague art wall.

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

Macabre astrological automaton clock dating to the late 1400s.

This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.