Solemn memorials are being held in New York, Washington and Pennsylvania among other places to honor the victims of the September 11, 2001 terror attacks.
September 11 Anniversary
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People observe a moment of silence honoring the victims of the September 11 attacks outside the World Trade Center site in New York, Sept. 11, 2013.
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Navy Quartermaster Matthew Konchan of Johnstown, Pa., stands in a field of black-eyed susans as he waits to participate in a wreath laying ceremony with Secretary of the Interior Sally Jewell during a memorial service at the Flight 93 National Memorial, Sept. 11, 2013.
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A woman touches the stone with names of the 9/11 victims at the 9/11 Memorial during ceremonies marking the 12th anniversary of the attacks on the World Trade Center in New York, Sept. 11, 2013.
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Indonesia's President Joko Widodo, left, walks with his predecessor Susilo Bambang Yudhoyono at the presidential palace in Jakarta, Indonesia, Oct. 20, 2014.