An intricate and amazing house built by architect Karl Junker.

When the rain falls, this drain system turns into a musical instrument.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

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

Living trees form the structure of an open-air palace.

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

A collection of abandoned typographic signs from Berlin and beyond.

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

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

Started as a kitchen garden, now the second largest botanical garden in the world.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

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

A slice of central Asia in the middle of Berlin.

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

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.

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

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

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

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

Smack in the midst of coal country, this collection provides a peoples' history of Appalachian miners' heritage.