National Zoological Park - View this location on map Major achievement of the late-19th century conservation movement, created for the preservation of endangered animals indigenous to the US; major component of the park system in the Rock Creek valley; important work of noted landscape architect Frederick Law Olmsted, with alterations by F.L. Olmsted, Jr.; site of major scientific investigations including experiments in zoology, anatomy, and aerodynamics; spacious and picturesque location a significant innovation in zoo design; influenced layout of curvilinear street pattern in surrounding area; established 1889, expanded 1921, 1923; approximately 15 buildings 1892-1940. 3001 Connecticut Avenue, NW, Washington , DC Historical

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