The halls connecting the garage to the residences are covered in brightly painted aluminum treatment associated with cars, not buildings. The colors move, symbolically, from earth to sky: green, yellow, orange, dark orange, hot pink, purple, bright blue. “Buildings are never brightly colored,” says Ingels, explaining the thinking behind this stepladder rainbow, “but cars often are.”  Photo 9 of 20 in Mountain Dwellings Urban Development in Copenhagen