What happened to the Twin Towers after the accident?

AT 8:46 am ON SEPTEMBER 11, 2001, as all the world now knows, a Boeing 767 jet flew into the North Tower of the World Trade Center (WTC) in Lower Manhattan. Eighteen minutes later, another plane crashed into the South Tower. Within 2 hours, both towers had collapsed.



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On the morning of Sept. 11, this technological marvel turned against the people who worked there. USA TODAY estimates that at least 200 people died inside World Trade Center elevators, the biggest elevator catastrophe in history.

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On Sept. 11, 2001, 343 firefighters and paramedics were killed, most when the towers collapsed. Now, an equal number have died from 9/11-related illnesses, the FDNY says.

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In 2010, buried underneath the ruins of the Twin Towers, we found the remains of a large ship's hull. Now, scientists have revealed the secrets behind this mysterious vessel. The ship was discovered in the wreckage below the excavation site, approximately 22 feet (6.7 meters) below the soil.

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The North Tower lasted around 46 minutes longer than its twin, having been struck 17 minutes before the South Tower was attacked and standing another half-hour after the South Tower collapsed.

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– On this Sunday, 21 years ago, first responders climbed 110 stories at the World Trade Center after the twin towers were attacked. A total of 343 firefighters lost their lives in the line of duty on that horrific day.

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Each of the Twin Towers had 110 floors. Each tower's footprint and floors were approximately an acre in size. On windy days, each tower could sway up to almost 12 inches side to side. There were 43,600 windows in the Twin Towers, equating to more than 600,000 square feet of glass.

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8:46:40: Flight 11 crashes into the north face of the North Tower of the World Trade Center, between floors 93 and 99. No passengers survive the crash and an unknown number of people inside the building are also instantly killed.

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Nineteen terrorists from al-Qaeda hijacked four commercial airplanes, deliberately crashing two of the planes into the upper floors of the North and South Towers of the World Trade Center complex and a third plane into the Pentagon in Arlington, Virginia.

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Where did Flight 93 crash? The plane crashed in an open field next to a wooded area in Stonycreek Township, Somerset County, Pennsylvania at 10:03:11 am.

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The United States Strategic Bombing Survey of the atomic attacks, released in June 1946, used the term liberally, defining it as: For convenience, the term 'ground zero' will be used to designate the point on the ground directly beneath the point of detonation, or 'air zero.

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The youngest flight passenger who died was Christine Hanson, a 2-year-old on her way to Disneyland on United Airlines Flight 175. The oldest was Robert Norton, 82, who was on American Airlines Flight 11. The 19 hijackers from the militant Islamic extremist group al-Qaeda also died.

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