Part of the former Willow Run Bomber Plant is shown at Willow Run Airport in Ypsilanti Township, Mich., Wednesday, July 17, 2013. The bomber plant west of Detroit was where, at Presiden

 

              Part of the former Willow Run Bomber Plant is shown at Willow Run Airport in Ypsilanti Township, Mich., Wednesday, July 17, 2013. The bomber plant west of Detroit was where, at Presiden
Part of the former Willow Run Bomber Plant is shown at Willow Run Airport in Ypsilanti Township, Mich., Wednesday, July 17, 2013. The bomber plant west of Detroit was where, at President Franklin Roosevelt's urging, Ford Motor Co. switched from making cars to planes and produced one an hour _ nearly 9,000 B-24 Liberator bombers in all _ to help win the war in Europe. At the time of its 1940s construction, the plant was the largest factory in the world, employing 40,000 men and women, including Rose Will Monroe, who was believed to have been the inspiration for the famed Rosie the Riveter character. The factory went back to auto production for half a century under the General Motors name and closed for good last decade. The plan is to knock it down. But a group of donors are hoping to save at least a piece of it so they can erect a museum dedicated to Detroit's role as the "Arsenal of Democracy." To make that happen, though, organizers need to raise $5 million by Aug. 1. (AP Photo/Paul Sancya)