The Museum of World War II is a not for profit museum devoted to World War II located in Natick, Massachusetts, a few miles west of Boston. Formed over a period of more than 50 years by its founder, Kenneth W. Rendell, one of the world's premier dealers in autographs, letters and manuscripts, who has earned international renown as an authenticator of historic artifacts, the Museum's collections document in detail the events of the war, from the signing of the Versailles Treaty, which ended World War I, to the Nuremberg and Tokyo war crimes trials, which brought the Second World War to its close. The Museum's goal is to preserve the reality of the history of World War II and to provide an educational experience of the lessons to be learned.

On display are over 7,000 artifacts as well 103 mannequins outfitted in complete uniforms and military equipment. Every piece is authentic, from documents with the handwriting of Roosevelt to the actual uniforms worn by concentration camp prisoners. The collections include highly important wartime letters, documents, and manuscripts of all the major political and military leaders, as well as the papers of officers and soldiers of all ranks, concentration camp inmates, and civilians. Adolf Hitler, Franklin D. Roosevelt, Sir Winston Churchill, Dwight D. Eisenhower, George S. Patton, Bernard Montgomery, Joseph Stalin, Erwin Rommel, Benito Mussolini, Joseph Mengele, Adolf Eichmann, Raoul Wallenberg, and Anne Frank's family are all represented in original letters.