Allied tank outside the Arts and Industries Building, about 1920
After World War I the Smithsonian collected war artifacts and exhibited them in and around the Arts and Industries Building and in the rotunda of the Natural History Building. The Smithsonian's 1919 annual report underscored the importance of "graphically illustrating the military, naval, and aerial activities not only of our own side of the conflict but of that of our opponents as well."
See also:
Military History, Transportation, World War I