One of these structures on a former almshouse in Beaune, France is decorated with polychrome tiles. An “accessible” one of these structures designed by Snohetta is much-used by pedestrians at the National Opera and Ballet in Oslo. In traditional Chinese (20[1])architecture, joints on a type of bracket called (20[1])dǒugǒng are held together by the pressure of these structures. (20[1])For the main terminal of the Dulles Airport, (0[2])Eero Saarinen (0[1])designed one of these (0[1])concrete (0[1])structures (0[1])with a prominent (20[1]0[1])(*) catenary curve. (10[2]0[9])The Chicago (0[1])City (0[1])Hall (0[2])has (0[1])a “green” example of (10[1])one of these structures that covers most of it (10[1])with vegetation. These structures are often made from shingles and may be pitched (10[4])to allow rain to drain off. (10[2])For (10[1])10 points, name (10[1])these structures that cover a building. (10[4])■END■ (10[15])