Dynamic, lively, stunning, soaring. These are the words used by Smithsonian officials and architect Spencer de Grey to describe the new Robert and Arlene Kogod Courtyard at the Donald W. Reynolds Center for American Art and Portraiture, home to both the Smithsonian American Art Museum and the National Portrait Gallery. With a blend of modern aesthetics and historic sensibilities, the new courtyard is a gorgeous space that the Smithsonian plans to use to hold public…