The prototype for all Nazi concentration camps.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

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

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

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

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

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

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

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Singing sand that stands as the final remains of an ancient lake.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

An eatery for UFO seekers on the Extraterrestrial Highway.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

The longest living non-clonal organisms on Earth.

The drama of nature in full effect in this Nevada State Park.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

The only completed wing of Utah's first capitol is filled with artifacts and odd stories about its past.

Come for the speed, leave in love with the desert.

The largest island on the great salt lake is home to curious creatures and strange stories.