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

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 German bone house contains the remains of some 20,000 souls.

A statue dedicated to the antihero of the Nibelung legend.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

A triumphal steel arch on the side of a German mountain.

Legendary site where an evil bishop was devoured by rodents.

The many—66 to be exact—faces of the German forest.

Tiny castle in the middle of the Rhine made you pay to pass.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

The highest cold-water geyser in the world.

A top-secret bunker now turned museum, is an eerie look at what life would have looked like in the event of nuclear war.

This mysterious pig iron pillar does not rust, despite being weathered by the elements for centuries.

This German art chapel is perfect for those who like their worship hard, modern, and utterly alien.

Walk or bike along a narrow strip of Belgium sandwiched by German territory.

This former Nazi castle was built as a school to train what would have been the future of the Third Reich.

A distinctive former power plant turned university lecture hall looks like it could make you breakfast.

This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

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

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.