evidence: The moment shocked the nation. Two planes, hijacked by Islamic jihadists vowing death to all Americans, plowed into both towers at the World Trade Center in New York. Another plane was flown into the Pentagon in Washington, DC. A fourth plane, presumably headed for the White House or the U.S. Capitol, was heroically diverted by passengers and ended up crashing in an empty field in Pennsylvania. After reports of the first plane hitting the North Tower, millions watched the second plane hit the South Tower on live television. [...] 2:30 PM – Rudy Giuliani, the mayor of New York City, visits the fallen Twin Towers of the World Trade Center at what becomes known as Ground Zero. [...] The tragedy of September 11, 2001 will never be forgotten, and the aftermath is still continuing to unfold. The 9/11 Memorial and Museum opened on the site of the former World Trade Center on September 11, 2011, and features reflecting pools in the footprints of where the Twin Towers once stood.