The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Once one of the largest producers of pig iron in the world.

The final resting place of the camel who served with the Confederate Army during the Civil War.

This once lawless patch of land was home to an infamous and deadly land feud.

A museum dedicated to the lovable crime couple Bonnie & Clyde, just a few miles away from the site of their early demise.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

A 12th-century fortress containing some of Berlin's oldest buildings.

Super-heavy Nazi architectural experiment.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

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

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

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

An eerie, derelict amusement park in Berlin.

The final resting place of the last "gypsy king" of Poland.

A bus with a butt and biceps to put Olympic athletes to shame.

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