The Smithsonian Institution is primarily located in Washington, D.C., where it operates a total of nineteen museums, galleries, and the National Zoological Park. The National Mall is home to several of the most prominent museums, such as the National Museum of Natural History, the National Museum of American History, and the National Air and Space Museum. Additionally, the Smithsonian also has facilities in New York City, such as the Smithsonian American Art Museum, and other locations across the United States, which include Smithsonian affiliates. While the core of the institution is centralized in Washington, D.C., it is important to note that its influence and programs extend well beyond these physical locations. For specific addresses or more detailed information about different sites, it is advisable to visit the current web page of the Smithsonian Institution.