An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

What was once an underground Nazi city is now Europe's largest bat reserve.

Before he was forced to flee the country under Nazi rule, Albert Einstein spent his summers in this custom-built lakeside house near Berlin.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

After serving in World War II and picking up Apollo astronauts, this aircraft carrier has been turned into a museum overlooking the San Francisco Bay.

The archeological ruins of the ancient fortified city of the mysterious Teotenanca civilization.

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