The memorial was placed on the site of the former twin towers of the World Trade Center. Built on the site of one of the towers and opened to the public on September 11, 2011, it pays tribute to all the victims of the attacks of September 11, 2001. Saturday, September 11, 2021, the Americans once again pay tribute to the 2,977 victims and their families, as well as the wounded and rescuers.
September 11 Memorial and Museum
![(FILE)Police officers stand outside Ground Zero on the morning of the 15th anniversary of the 9/11 attacks in Manhattan, New York, U.S., September 11, 2016. REUTERS/Andrew Kelly](https://gdb.voanews.com/2c88792f-7f2c-4171-87c7-2864fa446a20_w1024_q10_s.jpg)
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(FILE)Police officers stand outside Ground Zero on the morning of the 15th anniversary of the 9/11 attacks in Manhattan, New York, U.S., September 11, 2016. REUTERS/Andrew Kelly
![(FILE)Commuters travel through the Oculus transportation hub in New York, on July 30 2021. The roof of the building opens every September 11 as a memorial to the victims of the 9/11 attacks.](https://gdb.voanews.com/46711d75-24fe-4345-8905-090f2b96b02a_w1024_q10_s.jpg)
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(FILE)Commuters travel through the Oculus transportation hub in New York, on July 30 2021. The roof of the building opens every September 11 as a memorial to the victims of the 9/11 attacks.
![(FILE)The Oculus transportation hub (L) stands next to Freedom Tower in New York, on July 30 2021. The roof of the building opens every September 11 as a memorial to the victims of the 9/11 attacks](https://gdb.voanews.com/d84c1a0b-28ea-4df0-8cfe-0a263506db1b_w1024_q10_s.jpg)
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(FILE)The Oculus transportation hub (L) stands next to Freedom Tower in New York, on July 30 2021. The roof of the building opens every September 11 as a memorial to the victims of the 9/11 attacks
![(FILE) This file photo shows the One World Trade Center tower in New York on July 3, 2016. - It is the skyscraper that replaced the Twin Towers in New York's skyline. Inaugurated in 2014, the One World Trade Center has become a symbol of resilience after the horror of 9/11.](https://gdb.voanews.com/afdf66b6-4d27-4c5a-bcb3-9962d9bd5d0e_w1024_q10_s.jpg)
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(FILE) This file photo shows the One World Trade Center tower in New York on July 3, 2016. - It is the skyscraper that replaced the Twin Towers in New York's skyline. Inaugurated in 2014, the One World Trade Center has become a symbol of resilience after the horror of 9/11.