One of the last remaining railway viaducts equipped with a transporter ferry.

The largest mosque in Germany.

The first recognized Neanderthal remains were found in this now-lost cave in 1856.

Largest illuminated advertisement sign in the world.

One of the largest busts in the world celebrates the German city's erstwhile namesake.

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

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

This strategic isle was once swapped between empires and almost entirely destroyed in a bomb explosion.

Named after the German word for "a longingness to travel," this park brings together thousands of city and street signs from around the world.

A steam powered train that runs on city streets.

One of the most iconic neon ads of former East Germany.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

You've probably seen these distinctive orange-tiled columns on the big screen.

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

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

This strange building looks like a medieval fortress crashed into a 1960s Brutalist office block.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

A kindergarten shaped like a cat with a tail that's a slide.

A historic steam train meanders along one of the most scenic rail routes in Germany's Black Forest.

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

As lake waters recede, a German village reemerges after more than a hundred years.

A stunning two-story timepiece within a medieval Brick Gothic church.

This historic little railroad runs through some of the most beautiful scenery in Germany.