20 Most Powerful Photographs Ever Taken
12. Phyllis Siegel, 76, left, and Connie Kopelov, 84, both of New York, embrace after becoming the first same-sex couple to get married at the Manhattan City Clerk's office in 2011.
11. An aid worker using an iPad captures an image of a dead cow's decomposing carcass in Wajir near the Kenya-Somalia border on July 23.
