Description: A daily photo highlight from Smithsonian collections. [caption id="" align="aligncenter" width="328" caption="Astrophysicist Charles Greeley Abbot (fifth Secretary of the Smithsonian Institution, 1928-1944) carrying the house-fly vane radiometer afoot up the Mount Wilson, California trail. Abbot made this instrument in Pasadena, California, but carried it by hand up the trail
Description: [caption id="" align="aligncenter" width="301" caption="Photograph of the "Dynamics of Evolution," a major exhibit at the National Museum of Natural History. The "People Tower" in the foreground is covered with more than 100 larger-than-life sized photos of faces that show genetic traits, such as blue or brown eyes, or black or blonde hair, May 1979, by Unidentified
Description: A daily photo highlight from Smithsonian collections. [caption id="" align="aligncenter" width="410" caption="Owls, named "Increase" and "Diffusion", lived in the West Tower of the Smithsonian Institution Building, 1977, by Michael Johnson, Photographic print, Smithsonian Institution Archives, Record Unit 371 Box 2 Folder June 1977, Negative Number:96-929."][/caption]
Description: A daily photo highlight from Smithsonian collections. [caption id="" align="aligncenter" width="370" caption="Renwick Administrator Lloyd E. Herman (1972-1986), wearing a cummerbund made of leftover drapery material from the Grand Salon, examining woodworks of craftsman Wendell Castle at the opening of the Renwick Gallery, January 27, 1972, by Unknown photographer,
Description: [caption id="" align="aligncenter" width="430" caption="Unveiling of the model for the exhibition "The Federal City: Plans and Realities" in the Office of Exhibits Central workshop, 1976, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 371, Box 2, Folder: March 1976, Negative Number: 76-2525-18."][/caption]
Description: [caption id="" align="aligncenter" width="406" caption="Completing the heavy construction of the United States National Museum building, now the National Museum of Natural History, on May 11, 1909, at 11 am, workmen set the last stone on the south porch, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 95 Box 33 Folder 4, Negative
Description: A daily photo highlight from Smithsonian collections. [caption id="" align="aligncenter" width="368" caption="Eileen M. McCarthy, chief of the Publications Distribution Section of the Smithsonian Institution Press, opening gifts at her retirement party in the Great Hall, Smithsonian Institution Building, March 9, 1973, by Unknown photographer, Photographic print, Smithsonian
Description: [caption id="" align="aligncenter" width="408" caption="Aerial photo from the Washington Monument showing the newly completed Museum of History and Technology, now the National Museum of American History, the construction of the West Wing of the Natural History Building, The National Mall, Constitution Avenue, the Capitol in the distance, and the Smithsonian Institution
Description: A daily photo highlight from Smithsonian collections. [caption id="" align="aligncenter" width="430" caption="Secretary S. Dillon Ripley with Mexican Ambassador Jose Juan de Olloqui with the celebrated Chac-Mool from Chichen-Itzaon which is a classic example of Maya-Toltec sculpture, November 18, 1976, by Richard K. Hofmeister, Photographic print, Smithsonian Institution
Description: [caption id="" align="aligncenter" width="416" caption="A luncheon given by friends in honor of the retirement of Miss Nellie H. Smith at Ye Old Inn on Thursday, July 31, 1930, She was appointed in March 1890 and spent 40 years at the Smithsonian, 1930, by Unidentified photographer, Smithsonian Institution Archives, Record Unit 7177 Box 13 Folder 16, Negative Number:
Description: A daily photo highlight from Smithsonian collections. [caption id="" align="aligncenter" width="442" caption="Visit of Muhammad Ali to the National Museum of History and Technology, now the National Museum of American History, March 17, 1976, when he donated a pair of gloves and a robe to the museum for the "Nations of Nations" exhibition, 1976, Richard K. Hofmeister,
Description: [caption id="" align="aligncenter" width="430" caption="Behind the Smithsonian Institution Building (SIB), the "Castle," is the site of the Smithsonian's museum complex on Independence Avenue, 1987, by Jeff Tinsley, Photographic print, Smithsonian Institution Archives, Record Unit 410 Box 3 Folder Quad with Street, Negative Number: 87-7964-1."][/caption]