These 18th century gardens tell a rocky story of the son of Odysseus.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

The prototype for all Nazi concentration camps.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

Terrifying derelict military hospital once housed a recuperating Hitler.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

"The most colorful grottoes of the world.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

An intricate and amazing house built by architect Karl Junker.

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

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

Ruins of a German Castle on top of a towering stone pillar.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The fairy tale castle of the "fairy-tale king."

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

A subterranean shelter remains intact under a busy Paris railway station.