The ghostly silhouette of the few standing pieces of the exterior of one of the World Trade Center towers is all that remains after the terrorist attacks of Sept. 11, 2001. The attacks on the World Trade Center and the Pentagon led to the US invasions of Afghanistan and Iraq and a war on terrorism that still continues.
Alex Fuchs/AFP/Getty Images
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Firefighters raise a U.S. flag over the debris of the collapsed twin towers of the World Trade Center. Two jetliners, hijacked by terrorists, hit the buildings on Sept. 11, 2001, causing them to collapse. A total of 2,753 people died at the World Trade Center.
The Record, Bergen Co. NJ/Getty Images
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Officials examine the crater where United Airlines Flight 93 crashed near Shanksville, Pa., on Sept. 11, 2001. The plane, bound from Newark, N.J., to San Francisco, was commandeered by terrorists who intended to fly it either into the White House or the US Capitol. When passengers tried to retake control of the jetliner, the hijackers crashed it.
David Maxwell/AFP/Getty Images
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Terrorists also crashed a hijacked jetliner into the western side of the Pentagon in Washington, D.C., on Sept. 11, 2001, killing 125 in the building and 64 on the plane. The badly damaged building is seen at dawn on Sept. 16, 2001.
Larry Downing/Reuters
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A New York City firefighter looks at the remains of one of the twin towers of the World Trade Center on Sept. 13, 2001. The New York City Fire Department lost 343 firefighters in the Sept. 11 terrorist attack.
Photographer's Mate 2nd Class Jim Watson ME/Reuters/HO/U.S. Navy
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A military helicopter flies in front of the damaged western face of the Pentagon in Washington, D.C., on Sept. 14, 2001. After terrorists flew a jetliner into the building on Sept. 11, 2001, the resulting fire caused part of the building to collapse.
Stephen J. Boitano/Getty Images
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President George W. Bush stands atop the rubble of the World Trade Center on Sept. 14, 2001, and speaks to rescue workers. He told them: "I can hear you. The rest of the world hears you. And the people who knocked these buildings down will hear all of us soon."
Win McNamee-Files RC/HB/Reuters
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A rescue dog is transported out of the debris of the World Trade Center on Sept. 15, 2001, after helping to search for survivors of the Sept. 11 attacks. Remains of many of the victims of the attacks were never found.
HO/U.S. Navy Photo by Journalist 1st Class Preston Keres ME/Reuters
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Workmen cut through the twisted steel remains of the World Trade Center on Sept. 23, 2001, as they clear the site of debris caused by the collapse of the twin towers.
Kai Pfaffenbach HK/SV/Reuters
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An aerial view of Ground Zero on Sept. 26, 2001, site of the collapsed World Trade Center towers, shows the effect of the destruction. Hundreds of rescue workers were still combing the site two weeks after the Sept. 11 attacks, hoping to find survivors or, failing that, remains of the victims.
U.S. Customs Service/Handout/Reuters
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Workers create a shower of sparks as they cut away part of the last standing piece of the World Trade Center’s facade on Dec. 10, 2001.
Mike Segar/RTR/Reuters
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A sign bearing a quote from President George W. Bush stands outside the construction zone at the Pentagon where work on repairing the building was under way. The building was repaired less than a year after the terrorist attack of Sept. 11, 2001.
Harry Hamburg/NY Daily News Archive via Getty Images
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Ground Zero is empty of debris on June 4, 2002. An emotional debate on what should be placed on the site began once cleanup was finished.
Peter Morgan/Reuters
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The final standing support beam from the World Trade Center is seen being lifted by crane before being removed from Ground Zero on May 28, 2002. The beam was placed on a flatbed truck and covered in a black cloth. Cleanup at the site ended on May 30, 2002.
Mike Segar MS/Reuters
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Thousands of people attend commemorative ceremonies on Sept. 11, 2002, at the Pentagon in Washington, D.C. The event marked the one-year anniversary of the terrorist attacks at the Pentagon and the World Trade Center.
Jim Watson/AFP/Getty Images
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Family members of victims of United Flight 93 leave flowers on Sept. 2, 2002, at the site where the hijacked jetliner crashed on Sept. 11, 2001. Passengers on the plane, alerted to the attacks on the Pentagon and the World Trade Center, attempted to retake control of the jetliner before the hijackers crashed the plane.
The Asahi Shimbun via Getty Images
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The families of victims of the Sept. 11 terrorist attack on the World Trade Center gather in a circle as they place flowers at the Ground Zero site on the one-year anniversary of the tragedy. Thousands gathered at the site to mark the anniversary.
Jim Bourg/Reuters
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Construction at the World Trade Center site is seen in this photo from Aug. 26, 2003. The exit from the new subway station is seen at the bottom. Construction on the replacement for Seven World Trade Center is seen at right.
Chip East/Reuters
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Sept. 11 commemorative events at Ground Zero in 2003 feature two reflecting pools meant to represent the twin towers of the World Trade Center. Families of victims of the terrorist attacks later placed flowers at the pools.
Stan Honda/AFP/Getty Images
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On the fifth anniversary of the Sept. 11 attacks, mementos left by visitors mark the memorial site where United Flight 93 crashed near Shanksville, Pa. Terrorists who hijacked the plane intended to crash it into the White House or the US Capitol. When passengers tried to retake control, the hijackers crashed the plane here.
Jeff Swensen/Getty Images
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Human remains were still being found at Ground Zero more than five years after the Sept. 11 terrorist attack that destroyed the World Trade Center’s twin towers. Bones were found in October 2006 when workers cleared rubble from a manhole cover, prompting the search for remains to begin again.
Chip East/Reuters
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Work on new buildings at the World Trade Center site continues on Sept. 8, 2009. Centerpiece of the project will be a 104-story-tall building known as the Freedom Tower.
Shannon Stapleton/Reuters
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Family members of those killed in the Sept. 11 attack at the Pentagon, as well as special guests, visit the newly-dedicated outdoor memorial on Sept. 11, 2008. The memorial includes 184 illuminated benches, one for each victim of the terrorist attack at the Pentagon.
Chuck Kennedy/MCT/MCT via Getty Images
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Police and firefighters stand as an honor guard at the Ground Zero reflecting pool during Sept. 11 memorial ceremonies on Sept. 11, 2009. Construction on the 104-story Freedom Tower can be seen at right.
Chip East/Reuters
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The 'Tribute in Light' echoes the silhouettes of the World Trade Center’s twin towers on the ninth anniversary of the Sept. 11 attacks on Sept. 11, 2010.
Eric Thayer/Reuters
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Maj. Tevye Yoblick pauses to reflect on the Sept. 11 attacks at the Pentagon memorial built to honor of those who were killed.
Matt McClain/For The Post/Getty Images
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In 2011, Matt Hoopes straightens a flag pole that was bent over from a wind next to the Flight 93 Chapel near Shanksville, Pa. There is one flag for each passenger on United Flight 93, which was hijacked as part of the Sept. 11 terrorist plot and crashed near here.
Michael Williamson/The Washington Post via Getty Images
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Norm Simard of Allentown, Pa., writes a note of thanks to the passengers of Flight 93 as he sits near the memorial to the jetliner that was crashed by terrorists on Sept. 11, 2001. He hoped to place his note at the impact site’s memorial stone.
Michael Williamson/The Washington Post via Getty Images
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Work on the World Trade Center construction site and the National September 11 Memorial & Museum in lower Manhattan are seen on Aug. 24, 2011. Two reflecting pools will be part of the memorial.
Lucas Jackson/Reuters
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Workers pressure wash the inside of the north pool of the National September 11 Memorial & Museum on July 2011 at Ground Zero in New York City. Construction of the memorial was nearing completion in anticipation of a dedication on Sept. 11, 2011, the 10th anniversary of the terrorist attacks.
Mike Segar/Reuters
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Guests walk along the concourse at the Flight 93 National Memorial on Sept. 10, 2011, in Shanksville, Pa. Former Presidents George W. Bush and Bill Clinton were among those who spoke at the dedication ceremony for the memorial.
Jeff Swensen/Getty Images
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A woman holds a picture she took of the twin towers of the World Trade Center the day before the terrorist attack of Sept. 11, 2001.
Jim Young/Reuters
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A man examines names on the wall of the Empty Sky memorial for New Jersey victims of the Sept. 11 attacks. The memorial, in Liberty State Park in Jersey City, N.J., was dedicated on the 10th anniversary of the terrorist attacks.
Gary Hershorn/Reuters
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Selvyn Blake holds a picture of his mother, Carol Rabalais, who was killed in the Sept. 11 attacks, as he visits the National September 11 Memorial & Museum in New York City during 10th anniversary ceremonies on Sept. 11, 2011.
Seth Wenig/Pool/Reuters
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Families of victims of the Sept. 11 attacks visit the south pool at the National September 11 Memorial & Museum in New York City on Sept. 11, 2011. Names of the victims of the terrorist attacks, as well as a bombing of the World Trade Center in 1993, are inscribed on the bronze parapets surrounding the memorial pools.
Robert Deutsch/Pool/Reuters
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President Barack Obama and first lady Michelle Obama walk hand-in-hand as they visit the Flight 93 National Memorial on Sept. 11, 2011, the 10th anniversary of the Sept. 11 attacks.
Mandel Ngan/AFP/Getty Images
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Robert Peraza, who lost his son Robert David Peraza in the Sept. 11 attacks, pauses on Sept. 11, 2011, to read his son’s name at the north pool of the National September 11 Memorial & Museum in New York City.
Justin Lane/AFP/Getty Images
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On Sept. 11, 2011, family members of those who died in the terrorist attacks at the World Trade Center look over one of the twin memorial pools at the site, part of the National September 11 Memorial & Museum. The two pools sit inside the footprints where the twin towers once stood.
Gary Hershorn/Reuters
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A man takes a photo of the ‘Tribute in Light‘ in lower Manhattan on the 10th anniversary of the Sept. 11 terrorist attacks. The lights (88 powerful xenon bulbs) are positioned to echo the shape and placement of the twin towers of the World Center.
Eric Thayer/Reuters
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Shannon McMahon, center, gathers with friends next to the World Trade Center site in New York City on Sept. 11, 2011, the 10th anniversary of the Sept. 11 terrorist attack.
Allison Joyce/Reuters
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A group of people in Jersey City, N.J., photograph the ‘Tribute in Light‘ on Sept. 11, 2011. The display, which echoes the placement of the World Trade Center’s twin towers, was first seen in March and April 2002.
Gary Hershorn/Reuters
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A woman whose son died in the Sept. 11 attacks mourns at the World Trade Center site during memorial ceremonies on Sept. 11, 2011.
Carolyn Cole/Pool/Reuters
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A woman touches the names of victims of the Sept. 11 attacks on Sept. 12, 2011, at the National September 11 Memorial & Museum. The names are inscribed on bronze parapets around the two memorial pools at the site.
Mike Segar/Reuters
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The sun sets on 1 World Trade Center on May 25, 2012. The new, 104-story skyscraper is being built at the site of the Sept. 11 terrorist attacks in lower Manhattan.
Gary Hershorn/Reuters
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Signing the final steel beam to be raised to the top of 4 World Trade Center on June 25, 2012, are, starting at second from left, New York State Assemblyman Sheldon Silver, developer Larry Silverstein and U.S. Representative Jerrold Nadler.
Keith Bedford/Reuters
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Construction workers and guests watch as the final steel beam on 4 World Trade Center is raised before its installation on June 25, 2012. This 72-story building will face the memorial park at the site from the west.
Keith Bedford/Reuters
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The final steel beam in 4 World Trade Center is raised during a ceremony in New York City on June 25, 2012.
Keith Bedford/Reuters
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Clouds are reflected in the glass facade of 4 World Trade Center, one of five skyscrapers being constructed at the site of the Sept. 11 attacks in New York City. The building will have six retails floors and 2.3 million square feet of office space.
Description:
The ghostly silhouette of the few standing pieces of the exterior of one of the World Trade Center towers is all that remains after the terrorist attacks of Sept. 11, 2001. The attacks on the World Trade Center and the Pentagon led to the US invasions of Afghanistan and Iraq and a war on terrorism that still continues.
Description:
Firefighters raise a U.S. flag over the debris of the collapsed twin towers of the World Trade Center. Two jetliners, hijacked by terrorists, hit the buildings on Sept. 11, 2001, causing them to collapse. A total of 2,753 people died at the World Trade Center.
Description:
Officials examine the crater where United Airlines Flight 93 crashed near Shanksville, Pa., on Sept. 11, 2001. The plane, bound from Newark, N.J., to San Francisco, was commandeered by terrorists who intended to fly it either into the White House or the US Capitol. When passengers tried to retake control of the jetliner, the hijackers crashed it.
Description:
Terrorists also crashed a hijacked jetliner into the western side of the Pentagon in Washington, D.C., on Sept. 11, 2001, killing 125 in the building and 64 on the plane. The badly damaged building is seen at dawn on Sept. 16, 2001.
Description:
A New York City firefighter looks at the remains of one of the twin towers of the World Trade Center on Sept. 13, 2001. The New York City Fire Department lost 343 firefighters in the Sept. 11 terrorist attack.
Description:
A military helicopter flies in front of the damaged western face of the Pentagon in Washington, D.C., on Sept. 14, 2001. After terrorists flew a jetliner into the building on Sept. 11, 2001, the resulting fire caused part of the building to collapse.
Description:
President George W. Bush stands atop the rubble of the World Trade Center on Sept. 14, 2001, and speaks to rescue workers. He told them: "I can hear you. The rest of the world hears you. And the people who knocked these buildings down will hear all of us soon."