Sometimes, home buyers might miss a thing or two before they move in, and for this family, it was a strange metal door in the backyard. Turns out, this door was actually a nuclear fallout shelter, complete with perfectly preserved vintage products from the 1960s. The previous owner, surgeon Frank Pansch, built it two years prior to the Cuban Missile Crisis. Click here to view the first image in today's viral picture gallery. Continue reading for a viral video of Didga, the skateboarding cat.