A university observatory dome painted to resemble the beloved 'Star Wars' droid.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

The largest brick bridge in the world.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

A Nazi concentration camp and Anne Frank's place of death.

Retirement home for giant obsolete machines.

Reminders of the Battle of Berlin still scar the railway.

A subterranean display of public art and architecture.

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

This painted Lego bridge is the product of over a century of locomotive history.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

A former ironworks that was the first UNESCO industrial site.

The "Prussian Versailles" that is as glorious today as when it was built.

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

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

It's always summer at the beach inside this former airship hangar.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

One of downtown Berlin's last reminders of its Communist past.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

When German-Iraqi relations broke down, this embassy was vacated post haste.