Original: New York , NY Cooper-Hewitt , National Design Museum National Museum of the American Indian 's George Gustav Heye Center Chantilly , VA National Air and Space Museum 's Steven F. Udvar-Hazy Center Leesburg , VA Smithsonian Naturalist Center In addition , there are 156 museums that are Smithsonian affiliates .
Simplified: New York , NY Cooper-Hewitt , National Design Museum National Museum of the American Indian 's George Gustav Heye Center Chantilly , VA National Air and Space Museum 's Steven F. Udvar-Hazy Center In addition , there are many museums that are Smithsonian affiliates .