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 Arlington County began budgeting for the construction of Lee Boulevard in November 1933. With no approach route actually having been chosen by both the state of Virginia and county of Arlington, study of all proposed routes continued. A joint CFA/NCPC study of the proposed approaches occurred on November 16, 1933. Three weeks later, the CFA recommended that bridges be built on both the north and south ends of Columbia Island, linking it with the mainland. The north bridge should link to Lee Boulevard, the commission said, and the south bridge should link to an approach from the south. By August