This impressive castle looms over small German town.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

This decommissioned nuclear power plant offers tours of its Communist-era control room and reactor hall.

Deep in the forest next to Augsburg are abandoned bunkers and bullet traps from the region's military past.

The Tübingen University anatomical collection hosts an example of an extremely rare medical phenomenon.

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

During World War II, the Nazis repurposed this beer cellar to store stolen artwork.

One of the oldest cemeteries in Germany was originally used for victims of a cholera epidemic.

One of the world's oldest fossil exhibits is on display in a beautiful antique "naturalienkabinett."

Hidden in the forest are the crumbling, graffiti-covered remains of the factory where most of Germany's explosives were produced during World War II.

These abandoned Cold War-era bunkers are now a designated refuge for endangered bat species.

Tucked away in a small German apartment is an eclectic museum devoted to West African vodun culture.

Constructed by forced laborers, this submarine pen is now a museum and war memorial.

A tiny basalt mountain with an observation tower overlooking the beautiful Bavarian countryside.

This outdoor library provides around-the-clock access to around 7,000 books.

A ruined castle stands atop a hill surrounded by dragon lore.

These tenacious 14th-century towers defied demolition and are now a fairytale vacation rental.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

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

The atomic museum in the basement of this German castle displays long strands of replica uranium cubes.

A graveyard and memorial chapel for victims of leprosy.

A Saxony castle houses one of the largest and most outstanding mineral collections in the world.

At this cemetery, artists are invited to design their own gravestones.

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