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

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.

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

A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.

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

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

Germany has its very own Centralia, whose spark remains attributed to "spontaneous combustion."

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

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

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

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.

This East German military command bunker was ready for World War III.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

An ancient pagan site swirling with legends in the foothills of Franconian Switzerland.

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

The stones of this formerly witch-obsessed castle were used to build a church.

The ruined remains of the airport Claus von Stauffenberg departed in his failed attempt to kill Adolf Hitler.

The largest brick bridge in the world.

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

Executed in 1401, Exhumed in 1878, Stolen in 2010.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

After years of being casually peed on by humans, this tree is peeing back.