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
9
A woman looks out at New York's Lower Manhattan and One World Trade Center from inside the Empty Sky memorial at Liberty State Park in Jersey City, New Jersey, Sept. 11, 2013.
10
Grissel Valentin (L) and Eileen Esquilin, who both lost family members in the 9/11 attacks, embrace at the edge of the North Pool of the 9/11 Memorial during a ceremony marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York.
11
U.S. President Barack Obama, first lady Michelle Obama, Vice President Joe Biden and Jill Biden pause for a moment of silence on the 12th anniversary of the September 11 attacks on the South Lawn of the White House.
12
A woman wipes her eyes after reading the name of her brother, Bobby Hughes, as friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Sept. 11, 2013.