Smithsonian American Art Museum Landmark located in Washington, D.C.'s downtown cultural district. It is considered an example of Greek Revival architecture in the United States. It was designed by architects Robert Mills, and Thomas U. Walter. During the 1990s, the Smithsonian Institution worked on restoring the building. The Smithsonian completed another renovation of the building in July 1, 2006. The 2000-2006 renovation restored many of the building’s exceptional architectural features: restoring the porticos modeled after the Parthenon in Athens, a curving double staircase, colonnades, vaulted galleries, large windows, and skylights as long as a city block. During the renovation, the Lunder Conservation Center, the
Smithsonian Museum Support Center (MCI), the Laboratories of Analytical Biology (LAB) and other numerous departments from the National Museum of Natural History, including the Department of Anthropology, the National Anthropological Archives (NAA), the Human Studies Film Archives (HSFA), the Walter Reed Biosystematics Unit (WRBU), as well as branch of the Smithsonian Institution Libraries. Smithsonian Museum Support Center The Smithsonian Institution's Museum Support Center (MSC) is a collections storage and conservation facility in Suitland, Maryland which houses Smithsonian collections which are not on display in the museums. It is not usually open to the public, due to security concerns, though occasionally special tours are organized.