Bunkers that will help restore life on Earth in the event of the end of the world

Their bunker looks like a star, the tip of which ends at the beginning of the major cities of the United States. In such a “star” can accommodate about 1000 people and live in nothing, not needing at least two years. The cost of all these bins is great, and in which case not even every rich person can guarantee his whereabouts there. However, we, of course, hope that such projects will not be useful for further use.