Smithsonian Institution Building Across the National Mall, by Unknown, 1928, Smithsonian Archives - History Div, View from the roof of the Natural History Building, now the National Museum of Natural History, of the National Mall shortly before it is cleared of trees and leveled. Across the Mall are the Smithsonian Institution Building and the Arts and Industries Building Parked along Madison Drive N.W. are automobiles of the 1920s..