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Pakistani civil society activists pray during a vigil in Lahore on December 18, 2014, for the children and teachers killed in an attack by militants on an army-run school in Peshawar. (Arif Ali/AFP/Getty Images)

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People visit a lantern show to celebrate the Lantern Festival on February 5, 2012 in Zhuozhou, Hebei Province of China. (ChinaFotoPress/ChinaFotoPress via Getty Images)

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(Michal Czerwonka/Getty Images)

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A red lantern lamp is seen in front of the Apple's Beijing flagship store on January 13, 2012 in Beijing, China. (Feng Li/Getty Images)

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A pro-Palestinian demonstrator holds up a burning Israeli flag on the Republique square in Paris on July 26, 2014. (KENZO TRIBOUILLARD/AFP/Getty Images)

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U.S. Army soldiers from the 2-82 Field Artillery, 3rd Brigade, 1st Cavalry Division, one of the last American combat units to exit from Iraq on December 15, 2011. (Joe Raedle/Getty Images)

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(JIM WATSON/AFP/Getty Images)

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(Joseph and Stewart Alsop, New York, 1947, Henri Cartier Bresson)