The Strangest Forbidden Places You’re Not Allowed to Visit

Jiangsu National Security Education Museum, Nanjing, China

The Jiangsu National Security Education Museum in Nanjing, China, opened its doors in 2009, but foreigners weren’t allowed in its first year out of fear that national secrets would be leaked. Now it’s open to everyone, but there aren’t a lot of photographs of artifacts or information about what you’ll find in the museum.