The Survival Condo Project in Kansas is a doomsday bunker built for millionaires. Check out the luxury survival community within an old missile silo. Follow BI Video: On Twitter More from Military ...

Narrator: Doomsday prepping isn't a new idea. In the '50s and '60s, houses were built with bunkers, and shelters started popping up during the Cold War. Today's preppers have plenty of survival ...