The World’s First Zombie Proof House Moveable walls and an entrance barricaded by a two story drawbridge make this first zombie proof house an impregnable fortress. By Mamta Bhatt • Apr 26, 2011 The World’s First Zombie Proof House Moveable walls and an entrance barricaded by a two story drawbridge make this first zombie proof house an impregnable fortress. By Mamta Bhatt • April 26, 2011