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

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Civil War re-enactor Cpl. Robert Fuller Houston with the 3rd Regiment Infantry, lowers his head during a prayer at a ceremony, Sept. 11, 2013, marking the 12th anniversary of the 9/11 terrorist attacks at the Betsy Ross House in Philadelphia.

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The sun reflects off the stainless steel wall of the "Empty Sky" memorial to New Jersey's victims of the Sept. 11, 2001 terrorist attacks, Sept. 11, 2013, in Jersey City, N.J.

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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, designated to promote awareness of the need to eradicate poverty and destitution in all countries.

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People unfold a giant flag during celebration of the Day of the Flag of Donetsk People's Republic in the town of Donetsk, eastern Ukraine.