Looking to one-up your friends in the inevitable "who would survive longest in a zombie apocalypse situation" argument? Well, better invest in some real estate in Concordia, Kansas, who is now offering zombie-proof condos.

The building, built on an old missile silo, is equipped some of your more standard amenities, such as a gym, pool, library and game room but are also withstand a nuclear explosion, has it's own filtration system and to this day is considered to be "one of the strongest structures built by man."