sentences:  Both buildings collapsed within two hours, destroying nearby buildings and damaging others.The hijackers crashed a third airliner into the Pentagon in Arlington, Virginia, just outside Washington, D.C.The fourth plane crashed into a field near Shanksville in rural Somerset County, Pennsylvania, after some of its passengers and flight crew attempted to retake control of the plane, which the hijackers had redirected toward Washington, D.C. Major terrorist events after the 11 September 2001 Attacks include the Moscow Theatre Siege, the 2003 Istanbul bombings, the Madrid train bombings, the Beslan school hostage crisis, the 2005 London bombings, the October 2005 New Delhi bombings, and the 2008 Mumbai Hotel Siege.