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  1. Collapse of the World Trade Center - Wikipedia

    Four of the five remaining World Trade Center structures were immediately crushed or damaged beyond repair as the towers fell, while 7 World Trade Center remained standing for another six hours until …

  2. What happened on 9/11? The September 11 timeline shows how the …

    Sep 11, 2024 · Smoke rises from the burning twin towers of the World Trade Center after hijacked planes crashed into the towers, Sept. 11, 2001, in New York.

  3. 9/11: What happened and how many people died in September 11 …

    Sep 10, 2025 · The buildings were set on fire, trapping people on the upper floors, and enveloping the city in smoke. In less than two hours, both 110-storey towers collapsed in massive clouds of dust.

  4. Timeline of the September 11 Attacks - Encyclopedia Britannica

    September 11 attacks Smoke billowing from the twin towers of New York City's World Trade Center after the terrorist attacks on September 11, 2001; both towers subsequently collapsed.

  5. What caused the World Trade Center towers to collapse on 9/11?

    Apr 16, 2024 · The World Trade Center towers collapsed from both the initial impact of the airplanes and the intense fires that followed. The initial damage to the buildings' external and core columns …

  6. 9/11 FAQs - National September 11 Memorial & Museum

    The centerpieces of the complex were the Twin Towers. On September 11, 2001, the entire complex was destroyed in a terrorist attack that has come to be referred to as “9/11.”

  7. Attack on America | September 11, 2001 | HISTORY

    Nov 24, 2009 · At approximately 8:46 a.m. on a clear Tuesday morning, an American Airlines Boeing 767 loaded with 20,000 gallons of jet fuel crashes into the north tower of the World Trade Center in …

  8. Reconstruction of the collapses of the New York World Trade Center ...

    Sep 27, 2024 · The resulting fires led to the collapse of the two main towers, WTC 1 and WTC 2, killing more than 2,700 building occupants, emergency responders, bystanders, and aircraft passengers …

  9. World Trade Center (1973–2001) - Wikipedia

    On September 11, 2001, al-Qaeda -affiliated hijackers flew two Boeing 767 jets, one into each of the Twin Towers, seventeen minutes apart; between 16,400 and 18,000 people were in the Twin Towers …

  10. 9/11 Timeline - Videos, World Trade Center Attacks | HISTORY

    Jun 21, 2011 · Suicide hijackers flew planes into both towers of the World Trade Center, causing the towers’ eventual collapse.