This photograph taken on April 21, 1962 by Robert L. Knudsen depicts aerial views of Washington, D. C., showing parts of the city during the John F. Kennedy administration. At the time, Washington Monument was separated from the Lincoln Memorial by the “tempos” —temporary buildings—erected during World War II. The foreground features the Smithsonian Institution's Castle, Arts and Industries Building, National Museum of Natural History, and the construction site of the Museum of History and Technology, which was renamed the National Museum of American History in 1980.