An ex nuclear ballistic silo from Kansas was converted into a real Condo. The site survivalcondo.com sells Residental levels. Out of the 7 existing levels all were sold very fast. People have basically everything they need to live for years. Plenty of food supplies, water, air and tasty luxury make this condo a perfect escape from any doomsday scenario.
Nowadays we have more and more reasons to be afraid of various things that threaten our existing on earth: from global climate changes, diseases, terrorism to lack of food and wars. The rich are even more afraid and the 7 people that already paid $2 million for each floor proved this.