Solemn memorials are being held in New York, Washington and Pennsylvania to honor the victims of the September 11, 2001 terror attacks.
September 11 Anniversary

១
A Bangladeshi child stands in an alley as a boy climbs a ladder outside their home at a slum in Dhaka, Bangladesh. Oct. 17 is International Day for the Eradication of Poverty, designed to promote awareness of the need to put an end poverty in all countries.

២
FDNY Firefighter Mike Bellantoni of New York prepares a memento at the Firefighter's Memorial adjacent to the World Trade Center, Sept. 11, 2013 before the start of the official ceremonies at the 9/11 Memorial nearby.

៣
Britain's Prince Harry (L) and Prince William (R) take part in a trade on the trading floor of BGC Partners. BGC holds a Charity Day each year to commemorate the 658 employees who lost their lives in the 9/11 attacks on the World Trade Centre in New York. London, September 11, 2013.

៤
Former Mayor Rudy Giuliani (2nd L) and New York City Mayor Michael Bloomberg (2nd R) attend a ceremony at the 9/11 Memorial marking the 12th anniversary of the attacks on the World Trade Center in New York September 11, 2013.

៥
A woman looks out at New York's Lower Manhattan and One World Trade Center from inside the 9/11 Empty Sky memorial at Liberty State Park in Jersey City, New Jersey, September 11, 2013.

៦
U.S. President Barack Obama, first lady Michelle Obama, Vice President Joe Biden and Jill Biden (L-R) pause for a moment of silence on the 12th anniversary of the attacks of September 11, 2001, on the South Lawn of the White House in Washington.

៧
People observe a moment of silence honoring the victims of the September 11 attacks outside the World Trade Center site in New York, September 11, 2013.

៨
Two people with shirts commemorating New York City Fire Department firefighter Frankie Esposito sit at the South reflecting pool at the 9/11 Memorial during ceremonies marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York.