Honoring the memory of the 11th day
America mourns as leaders and families mark 20th anniversary of 9/11 attacks, September 11 2001
Sept. 11 Attack 20th Anniversary: Live Updates: With Bowed Heads, Americans Reflect on 9/11 and Its Aftermath - The New York Times
Watch 9/11 Twenty Years Later: America Remembers - A Full Week of Coverage on ABC and ABC News Live
9/11 Ceremonies Commemorate 20 Years Since The Attacks : NPR
Commemoration National September 11 Memorial & Museum
Remembering 9/11: How Americans have honored the victims for 20 years
9/11: The moment the world changed 20 years on
9/11 anniversary in pictures: Victims remembered 20 years after terror attacks, US News
A solemn ceremony': America remembers victims of 2001 terrorist attacks - France 24