Americans are remembering 9/11 with moments of silence, readings of victims' names, volunteer work and other tributes 21 years after the deadliest terror attack on U.S. soil. Victims’ relatives and dignitaries convene at the places where hijacked jets crashed on Sept. 11, 2001 — the World Trade Center in New York, the Pentagon and a field in Pennsylvania.
21st Anniversary of 9/11 Terror Attacks in Photos

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A relative of a victim places U.S. flags on the 9/11 Memorial in New York City, Sept. 11, 2022

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A woman reacts during a ceremony marking the 21st anniversary of the September 11, 2001 attacks on the World Trade Center at the 9/11 Memorial and Museum in the Manhattan borough of New York City, Sept. 11, 2022.

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Flags and flowers are placed at the 9/11 Memorial and Museum during a ceremony marking the 21st anniversary of the September 11, 2001 attacks on the World Trade Center, in the Manhattan borough of New York City, Sept. 11, 2022.

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Colonel Davis attends a ceremony marking the 21st anniversary of the September 11, 2001 attacks on the World Trade Center at the 9/11 Memorial and Museum in the Manhattan borough of New York City, Sept. 11, 2022.