A monolithic dome home in Smithsburg, Maryland, designed with the utmost in energy-efficient and disaster-proof features has been listed for $1.1 million. The property is located on a plot that spans nearly 6 acres and is located just minutes from Camp David. The home, which includes a 2.5-acre plot under forest protection, is also designed with a unique primary residence consisting of three interconnected domes. The owner, Chris Hyser, credits the unique design for creating a structure that offers near-absolute protection while staying naturally comfortable. The residence also features hydronic floor heating, powered by an external pellet boiler, and a stand-alone generator for uninterrupted power. The 2,163-square-foot home can be used as a primary home, a secondary escape, a corporate retreat, or a rental property.