Description: [caption id="" align="aligncenter" width="329" caption="Installation of the Comparative Anatomy Hall in the new United States National Museum, now the Arts and Industries Building, Workers can be seen using a pulley system to raise the skeleton of a whale to the ceiling, c. 1881, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit
Description: [caption id="" align="aligncenter" width="280" caption="The stairs leading to the south entrance of the National Museum of Natural History after a snow storm with a small path cleared through the snow, c. 1911, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record Unit 532, Box 133, Folder: NHB Undated, Negative Number: 26870-B."][/caption]
Description: [caption id="" align="aligncenter" width="442" caption="Workmen posing at the quarry in Bethel, Vermont, The Bethel quarry was one of three quarries where stone was obtained for the exterior walls of the new United States National Museum Building, now the Natural History Building, 1907, by Frank F. Graham, Smithsonian Institution Archives, Record Unit 95, Box 33, Folder 3A,
Description: [caption id="" align="aligncenter" width="420" caption="From 1897-1903, galleries were built on the second floor of the United States National Museum (USNM), now the Arts and Industries Building (A&I), to provide more exhibit space, Pictured are men beside bricks to be used in the construction of the galleries, c. 1897-1903, by Unidentified photographer, Photographic print,
Description: [caption id="" align="aligncenter" width="418" caption="Laborers can be seen working on the laying of a new floor of marble and terrazzo, according to the Watkins system, in one of the Northeast Range of the United States National Museum, now the Arts and Industries Building, On the upper half of the wall models of boats can be seen, Canoes can also be seen hanging from the