“People aren't angular. So why should they live in rectangles?” asked Charles Deaton, who calls himself a “sculptural architect.” The Denver architect built this “flying saucer” or “clamshell” house as his home and studio. It is a habitable sculpture on a reinforced concrete pedestal. Precast columns support a double shell of concrete sprayed on a welded steel frame. In this elliptical, three-story, cement and glass house, the doors, windows, walls, closets, and furniture are all curved, except for a few straight lines in the kitchen. The 3,000-square-foot house, built for $100,000, starred in the Woody Allen movie Sleeper.