This German monument honors the so-called "Prince of Mathematicians."

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

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

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

A Neolithic burial site erected around 3000 BC.

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

This Rococo church is known as the most beautiful village church in the world, and does not disappoint.

WWII rocket launchpad in rural Germany and site of operation backfire.

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

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

A strange rock formation with numerous legends trying to explain it.

1898 German railroad depot museum with working engines, steam train excursions, and hands-on displays.

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

The ruins of an abandoned crematorium haunt an eerie deserted German cemetery.

This extremely narrow tenement boasts a maximum occupancy of just two.

This 600-year-old home seems to defy physics.

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

King Ludwig I's collection of beautiful women.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

A former ironworks that was the first UNESCO industrial site.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

The great Danube river starts here.