This historic complex of museums incorporates several institutions across the US, but its origins are in DC, with the striking Smithsonian Institution Building - commonly known as "The Castle" - at its heart.The Smithsonian's museums include the magnificent National Air and Space Museum, where you'll find countless aircraft of distinction like the Wright Brothers' "Flyer" and Lindbergh's "Spirit of St Louis". The National Museum of National History is another big draw, as is the American Art Museum.
