This strange sculpture is an enigmatic icon of this medieval German town.

The remains of the last Bosnian fortress to fall to the Ottomans are still standing.

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

Bridge that died in war and was resurected.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

A giant bug impaled on a 75-foot-tall needle.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A fake Transylvanian castle houses a cathedral of antlers.

Museum dedicated to the terror regimes of Hungary.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

Brussels' favorite peeing boy has a sister.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

A little sculpture with a large wardrobe.

Theme park featuring miniature replicas of European monuments.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.