A tiny chapel clings to a precipice above Germany’s gemstone capital.

The largest brick bridge in the world.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

The last bastion of Roman presence north of the Alps looms over a German town.

Go surfing on this urban wave, "hacked" by local surfers.

Enter the cabin of a life-sized Hindenburg replica.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

Hamburgers are intensely proud of their tunnel beneath the river.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

The great Danube river starts here.

Berlin's old airport.

A small but immensely extravagant palace built by the "Night King."

"The most colorful grottoes of the world.

A striking 12th-century-style castle built on the edge of a cliff.

The most visited, and possibly most controversial, museum in Germany.

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

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

The world's oldest rose is so tough it survived being bombed in World War II.

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

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

This enchanting mountain plateau celebrates spooky local folklore.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

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