Can your home survive a direct nuclear strike? This one can. Made from a decommissioned missile silo in upstate New York, it’s one of the strongest structures ever built. The 2,300-sq.-ft., below-ground portion includes a full kitchen, entertainment center, and two private suites. Entrance is gained via an 1,800-sq.-ft. log home on the surface, and there’s a private runway. Buy-in price? About $750,000.