IWM Duxford is a historic RAF airfield also used by the United States Army Air Forces during the Second World War. It houses the Imperial War Museum's huge collection of historic aircraft and other large vehicles like tanks. Permanent exhibitions include the American Air Museum, Battle of Britain, Land Warfare and Historic Duxford (many of the buildings are original). You can get up close and personal with some of the most famous aircraft ever, including the Spitfire, Lancaster, Concorde and Vulcan. It's probably the best aviation collection and museum in the country, and enormous, so allow enough time. Air Shows are a regular feature and Duxford is also home to the Airborne Assault and Royal Anglian Museums.