Smithsonian Institution Archives Smithsonian Institution Archives The Smithsonian Institution Archives (SIA) is the archives of the Smithsonian Institution. SIA is located in Washington, D.C., United States, and maintains the archives related to the history of the 19 museums and galleries, the National Zoological Park, 9 research facilities, and the people of the Smithsonian. SIA's collections consist of archival material related to art, history, science and the humanities. This includes document, image, audio-visual, electronic, oral history and videohistory collections about expeditions, biographies, and general history about the Smithsonian Institution. In 1891, William Jones Rhees, Chief Clerk of the Smithsonian Institution, became Keeper of the
Smithsonian Theaters the dome (360 degrees) throughout the show. Certain days of the week, there is a free admission show known as "The Stars Tonight" in which the traditional planetarium equipment is utilized to give visitors a sky watching experience in the museum. Smithsonian Theaters Smithsonian Theaters is an operating unit of Smithsonian Enterprises, the revenue-generating business division for the Smithsonian Institution, United States. The unit operates three IMAX theaters and one Infiniti Digital Dome Planetarium, each presenting shows relevant to the museum in which it is located. The Lockheed Martin IMAX Theater is the flagship facility of Smithsonian Theaters, and is