On the clear morning of 11 September 2001, four hijacked planes struck at the heart of America's symbolic, military and economic power, killing nearly 3,000 people and shaking the world forever.
In a coordinated terrorist attack by al-Qaeda, the Twin Towers of New York's World Trade Center, the Pentagon and an open field in Pennsylvania became scenes of horror, courage and chaos. Learn and revisit the key facts: what happened when, how many lost their lives, which buildings were hit, and the real-life, human stories behind the statistics.
