Largest illuminated advertisement sign in the world.

A famed artist's inspiring work of peace and tolerance.

This cheeky statue of a man defecating gold coins graces the facade of a medieval guildhall.

According to legend a man pooped out the window of this tower to prove that it was straight.

Albert Einstein's head sticks out of a snail shell stacked on a rocket in this truly bizarre monument to the scientist.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

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

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

World's largest barrel containing an inn.

The final resting place of the famed German pilot, the "Red Baron."

This giant, 83-year-old ship elevator is an engineering feat to behold.

This unique medieval artwork featuring the story of the Antichrist remained lost for decades.

This 18th-century folly is one of Europe's rare "garden mosques."

This German fountain of a legendary apple wine-loving drink thief will spit on you.

Tourists often confuse this beautifully ornate former cigarette factory for a mosque.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

The bells remain in a shattered heap exactly as they fell when the church was bombed in World War II.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

A former Nazi lookout tower with a magnificent view of the Rhineland.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.