Fallout shelter...
The Zwick family from Neenah, Wisconsin, always knew there was a metal door hidden in the ground in their backyard, but they never dared to explore it before. Then, one day, the family decided to open the metal hatch and see what was inside. It turned out there was a Cold War-era fallout shelter buried in the backyard. A ladder led them down into a bunker, which contained items from the past including clothing, medical supplies, tools, flashlights, batteries and other items needed for a temporary stay in the shelter.