The United States National Museum, part of the Smithsonian Institution, is located in Washington, D.C. It houses a vast collection of artifacts and exhibits that showcase the history, culture, and natural heritage of the United States. Visitors can explore various topics, including American history, science, and art. The museum is dedicated to education and research, offering programs and resources for people of all ages. It features notable exhibits such as the Hope Diamond and artifacts from American Indian cultures, making it a significant destination for both tourists and scholars interested in the nation's diverse heritage.