Behind these stunning exteriors lie secrets and hidden dangers making them inaccessible to the public. Most people have heard the phrase “harder to get into than Fort Knox.” In fact, it’s the most highly protected place in the world, with what’s rumored to be electric fences, lasers, radar, machine guns and landmines making its gold reserves nigh on impossible to access.

Source: 20 Weird And Wonderful Places On Earth That Are Strictly Off-Limits To The Public