At 8:46 a.m. on September 11, 2001, American Airlines Flight 11 hit the World Trade Center’s North Tower in New York City. The plane hit the skyscraper between the 93rd and 99th floors, sending a massive shockwave throughout the structure. And while people on the lower floors attempted to leave the building, everyone above the impact zone was trapped. Then, at 9:03 a.m., the South Tower was struck by United Airlines Flight 175.
Overall, the coordinated terror attacks that took place that day claimed the lives of 2,996 people. And the unprecedented tragedy was broadcast live to millions of people around the world, with many who witnessed the events of September 11 still remembering where they were when they first heard the news.