History of the United States (1991–2008) South Tower less than twenty minutes later at 9:03 A.M. (EST), resulting in the collapse of both 110 story skyscrapers, and the destruction of the World Trade Center. The third hijacked plane, American Airlines Flight 77, was crashed into the Pentagon (the headquarters of the United States Department of Defense) in Arlington County, Virginia, demolishing a section of the outer southwest facing wall. After discovering that their plane, United Airlines Flight 93, was going to be used as a missile, passengers attempted to regain control of the plane which had been redirected towards Washington, D.C. However, after regaining control from
Construction of the Virginia approaches to Arlington Memorial Bridge group studied the Lee Highway and other approaches to the bridge on November 15, and on December 4 the CFA said it would approve any approach that Virginia and Arlington County did. For the first time since 1931, construction on the approach occurred in 1934. WPA money was used to hire laborers to begin the extension of the roadway past Lee Boulevard toward the cemetery. Construction created a number of traffic hazards. By April 1935, the road had reached Fort Myer and Arlington National Cemetery. Survey work showed that a lower grade could be achieved by altering the route, but