Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    The photos that follow depict the Sept. 11, 2001, attacks and their aftermath. Some 2,800 innocent people died in the attacks, including those aboard hijacked flights American 11 and United 175. ABC News obtained these images after filing a Freedom of Information Act request in 2009 with the National Institute of Standards and Technology, which collected them as part of an investigation into the collapse of the World Trade Center.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    Images caught on camera by a New York City Police Department helicopter depicting the destruction of the World Trade Center on 9/11.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    These images reveal the recovery efforts and disaster relief from a broader perspective than just an aerial view. They show the burning buildings from the water and as far away as the Statue of Liberty.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Photo

    In August 2009, ABC News saw that the NIST was asking various photographers for permission to release images it collected during its investigation, completed in 2005, into the collapse of the World Trade Center towers. Among the photographers who submitted images to NIST were average citizens and professional, freelance and other photographers.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    Seeing the request in the Federal Register, ABC News filed a Freedom of Information Act request Aug. 14, 2009, to obtain the volumes of pictures and video that NIST had collected. After months of review and collection by NIST, ABC News was provided with 2,779 pictures on nine CDs, 12 of which are featured here.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    Featured in this slideshow are selections from the thousands of images provided to ABC News. While many of the visuals depict images from that day that the public generally has seen before, some are from slightly different vantage points or angles.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    A boat offshore is pictured here as plumes of smoke from the buildings' collapse rise to the sky.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    The images include hundreds of shots taken from New York Police Department helicopters that show the vast size of the dust and debris cloud created when the towers fell. This aerial image gives a close-up look at one of the burning towers.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    In this powerful image, boats rush to the scene where nearly 3,000 people lost their lives. The wake left in the water by the boats conveys the urgency with which rescue teams were deployed to Ground Zero.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    A dust-and-debris cloud begins to settle over lower Manhattan after the collapse of the World Trade Center towers.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    Thick plumes of smoke rise around the towers. This aerial view depicts the monumental devastation inflicted upon New York City.
    Det. Greg Semendinger/NYC Police Aviation Unit
  • NYPD Aerials

    ABC News is working to secure permission to publish more of the images, the rights to which still are retained by the private individuals or organizations that originally took them.
    Det. Greg Semendinger/NYC Police Aviation Unit
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