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 of Virginia a wide easement for a new, wide road extending from the cemetery's south boundary northwest to Columbia Island. In October 1940, Congress passed legislation authorizing the War Department to purchase Washington-Hoover Airport This legislation, however, provided formal approval of the roadway easement for construction of a second Arlington Memorial Bridge approach. An unnamed sourced suggested in February 1941 that a portion of Boundary Channel near the under-construction Pentagon be filled in so that the new road did not have to use a bridge to connect to the George Washington Memorial Parkway and Arlington Memorial Bridge. The CFA asked