While squirrels get their own special day, the Smithsonian did have an expert about these familiar creatures.

Transportation exhibit featuring automobiles in the United States National Museum, now known as the Arts and Industries Building, circa 1894.

Cyanotype, aerial view of buildings and grounds at the World's Columbia Exposition, with Japanese Ho-o-Den Palace on Wooded Island, north end of the Horticulture Building, Woman's Building, Midway Plaisance, and Ferris Wheel in view, Chicago, 1893. 

Link Love: a weekly post with links to interesting videos and stories about archival issues, technology and culture, and Washington D.C. and American history.

See new collection highlights posted to the Smithsonian Institution Archives website.

Exhibit case filled with West African knives, shields and axes from an exhibition of the Herbert Ward African Collection in the United States National Museum at the Natural History Building, now known as the National Museum of Natural History, which opened March 1, 1922.

Orangutans at National Zoological Park, 1981-1982, by Jessie Cohen.

Golden lion tamarin group at National Zoological Park, November 1983, by Jessie Cohen.

1903 Oldsmobile gasoline automobile in front of the Army Medical Museum and Library at Independence Avenue and 7th Street, SW, Washington, D.C., 1940s.

Alpaca and vicuña at National Zoological Park, circa 1910s.