Quad Construction, by Tinsley, Jeffrey Wayne 1947-2017, 1985, Smithsonian Archives - History Div, Looking from the Independence Avenue side of the Quad construction. The floor will eventually be the roof of a 10,000 square foot, two-story high exhibit gallery. Photo shows Freer Gallery of Art, Smithsonian Institution Building and Arts and Industries Building in background and was taken with wide-angle lens that has made an interesting distortion..