Arizona is home to a plethora of unique homes, and this 1,256-square-foot property is no different. This windowless, two-bedroom, two-bathroom property built on four acres of desert is made of three, connected concrete domes that features a large garage, living area and a covered deck. While the house lacks central heating and cooling, the thick concrete walls help to maintain a 70-degree range in temperature. Completed in 1996, it took two years for the late Marion Rice to build what his daughter refers to as his dream house. This property is currently on the market for $73,000.