Remembering 9/11 – A group from the U.S. Navy gathers Thursday, September 11, at the Flight 93 National Memorial in Shanksville, Pennsylvania. This year marks the 13th anniversary of the September 11 terrorist attacks that killed nearly 3,000 people in New York, Washington and western Pennsylvania.
Remembering 9/11 – A woman bows her head in prayer in Shanksville, where United Airlines Flight 93 went down.
Remembering 9/11 – Family members gather in the rain at the impact site in Shanksville.
Remembering 9/11 – From left, U.S. President Barack Obama, U.S. Defense Secretary Chuck Hagel and Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey stand on stage as they participate in a ceremony at the Pentagon.
Remembering 9/11 – Obama and Hagel bow their heads during the ceremony at the Pentagon.
Remembering 9/11 – A woman reaches out to touch a rose on one of the benches at the Pentagon Memorial.
Remembering 9/11 – Tyrone McClave, of Bristol, Pennsylvania, looks up at One World Trade Center during a moment of silence in New York.
Remembering 9/11 – Members of the New York Police Department, the New York Fire Department and the Port Authority Police Department carry an American flag past one of the reflecting pools during memorial observances at the World Trade Center site.
Remembering 9/11 – Members of the New York Fire Department take time to reflect.
Remembering 9/11 – Paola Braut, of Belgium, kisses a photograph of her son Patrice along the edge of the North Pool of the World Trade Center site.
Remembering 9/11 – A man stands across the street from the National September 11 Memorial & Museum in New York.
Remembering 9/11 – Eileen Esquilin hugs her husband, Joe Irizarry, while mourning the loss of her brother, Ruben Esquilin Jr., during memorial observances in New York.
Remembering 9/11 – Former New York Gov. George Pataki, left, and former New York City Mayor Rudy Guiliani were among those in attendance at the World Trade Center.
Remembering 9/11 – Sam Pulia, the mayor of Westchester, Illinois, and a former police officer of the same town, mourns over the name of his cousin, New York firefighter Thomas Anthony Casoria, who was killed on 9/11.