PHOTOS: 1960s bomb shelter house on sale for $18 million in Las Vegas

This 15,000-square-foot Las Vegas home sits 26 feet underground — was designed as a bomb shelter in the 1960s. It has 5 bedrooms, 6 bathrooms, lawns, pools, terraces, views and a waterfall. It is located underneath a 2,300-square-foot home on more than an acre of land.