This medieval cathedral houses stained-glass windows featuring saints and pretzels.

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

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

A historic casino where Dostoyevsky is said to have lost it all on a single spin of the roulette wheel.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

This tremendous timepiece was once the largest cuckoo clock in the world.

A statue beloved by—and named by—the local townsfolk it represents.

Commemorating a unique medieval profession: men who collected feces.

An oversized, oddly designed pedestrian overpass has drawn comparisons to a commode for pachyderms.

Somber memorial to the May 10, 1933, book-burning which took place on this spot.

Fantastic views and thousands of love locks.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

A museum capturing one of the world's most famous classical composer's battle with hearing loss.

A stunning Art Nouveau cinema in the heart of Budapest.

These waste baskets play a few risque messages to discourage littering.

Swedish skyscraper with a 90° twist.

This chimerical bridge/tunnel appears to dead end right into the sea.

A NATO bombing took the lives of 16 civilians in 1999—the ruins remain in the center of Belgrade.

Belgrade’s oldest restaurant has a rather unusual name.

An eerie fountain commemorating the death of a boy that sparked a small war in the 19th century.

Arguably Belgrade's only example of pure Art Deco architecture.

This small bronze pyramid marks the center of Belgrade, but some say it is a Masonic symbol.

Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.