Ask AI: Was building seven on fire or hit by debris ,and did any other buildings fall by fire and debris on 9-11-2001

World Trade Center Building 7 (also known as WTC 7 or 7 WTC) was not directly hit by an airplane on September 11, 2001. However, it was severely damaged by debris when the nearby North Tower of the World Trade Center collapsed. The debris sparked fires, which continued to burn for hours and eventually caused the building to collapse on that same day. The collapse of WTC 7 is considered unique because, while it was not directly hit by a plane, it is the first instance of a tall building collapsing primarily due to uncontrolled fires. There were other buildings within the World Trade Center complex that were damaged or destroyed by debris and fire, such as WTC 3 (the Marriott World Trade Center Hotel), WTC 4 (South Plaza Building), WTC 5 (North Plaza Building), and WTC 6 (Customs Building), but none of these were as tall as WTC 7. On September 11, 2001, besides the two main towers (WTC 1 and WTC 2) and WTC 7, no other skyscrapers collapsed due to the combination of fire and debris damage. It's important to know that the collapse of these buildings was an unprecedented event, and an extensive investigation by the National Institute of Standards and Technology (NIST) was conducted to understand the details and causes of these collapses.

No, Building 7 was not on fire or hit by debris on 9/11/2001. It collapsed a few hours after the attacks due to fire and damage sustained from the collapse of the Twin Towers. No other buildings fell due to fire and debris on 9/11/2001.