Jim Mortensen had a plan to beat the high price of oil during the 1974 oil embargo. He’d build an energy efficient underground house. With help from friends and family, Jim Mortensen and his wife Mickey spent about eight years.
Earth Sheltered Homes and Berm Houses - a great cutaway view of how to set up a bermed home to allow light on each level, (front and back) as well as perfect indoor growing conditions for indoor gardens and green walls. It's an idea.