The National Museum of the American Indian is the sixteenth museum of the Smithsonian Institution. It is the first national museum dedicated to the preservation, study, and exhibition of the life, languages, literature, history, and arts of Native Americans. Established by an act of Congress in 1989, the museum works in collaboration with the Native peoples of the Western Hemisphere to protect and foster their cultures by reaffirming traditions and beliefs, encouraging contemporary artistic expression, and empowering the Indian voice.. Largest collection in the world devoted to North, Central, and South American Indian cultures. Multilingual. Gift shop, bookstore.