Just a few decades ago many feared total annihilation, with the Soviet and American atomic superpowers hovering over the red button. The threat is now past, but some of the nuclear bunkers still exist today, giving tourists a living history tour. Victor Baranov is a tour guide at "Bunker 42" museum in Moscow. Some 30 years ago the bunker used to be operational 24/7, ready to protect people from a possible nuclear attack. In order to do so effectively, the facility has specially-designed walls and door.
