Description: [caption id="" align="aligncenter" width="400" caption="Alligators in their enclosure in the original Animal House, also known as the Carnivora House, which opened in 1892 and was the first permanent building at the National Zoological Park, 1900, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 95, Box 46, Folder 1, Negative
Description: [caption id="" align="aligncenter" width="436" caption="Clerks of the Bureau of War Risk Insurance occupying the Natural History Building, now the National Museum of Natural History. On the request of President Wilson, the Board of Regents closed the museum to the public on July 16, 1918, making available to the government the ground and two exhibition floors (138,600 sq.
Description: [caption id="" align="aligncenter" width="430" caption="Drugs Exhibit in Arts and Industries Buildings, 1972, by Richard K. Hofmeister, Photographic print, Smithsonian Institution Archives, Record Unit 371 Box 1 Folder Summer 1972, Negative Number:72-5085-15A."][/caption]