This annual Belgian water race attracts bathtub captains from all over the world.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

This work of art, which took 35 years to complete, has a motorway running through it.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

A beautifully eclectic mix of architectural styles.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

Carved into living stone, a beloved roadside chapel peacefully welcomes the faithful and curious alike.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

For the holidays, the tallest broadcasting tower in the Netherlands turns into one of the world's tallest Christmas trees.

Visitors can still take a train to this former train station turned museum.

The cutest way to stay safe in traffic.

This annual harvest parade features intricate floats covered with fruits, vegetables, and seeds.

What looks like an ordinary house from the outside is actually a rotating sculpture.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

London's smallest police station is barely the size of a phone booth.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Baroque celebration of the end of the Great Plague of Vienna.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

These two 15th-century metal rods allowed people to check if they were swindled or not.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.