Tres hermanas- "Three Sisters", Cuajinicuilapa, Guerrero, Mexico, 1986. Tony Gleaton/Courtesy The Tony Gleaton Photographic Trust, All Rights Reserved hide caption

itoggle caption Tony Gleaton/Courtesy The Tony Gleaton Photographic Trust, All Rights Reserved

Gov. Bill Clinton shakes hands with the crowd as he arrives at a rally being held for him in Hartford, Conn., in March 1992. Jim Cole/AP hide caption

itoggle caption Jim Cole/AP

Second Place: Three gravel workmen look through a window at their workplace in Chittagong, Bangladesh. Dust and sand are everywhere. Faisal Azim/Courtesy of National Geographic Traveler Photo Contest hide caption

itoggle caption Faisal Azim/Courtesy of National Geographic Traveler Photo Contest

To selfie, or not to selfie? iStockphoto hide caption

itoggle caption iStockphoto

The hand-colored photo, titled "Reclining young lady," is of Stella Osarhiere Gbinigie when she was 16. Solomon Osagie Alonge/Franko Khoury/National Museum of African Art hide caption

itoggle caption Solomon Osagie Alonge/Franko Khoury/National Museum of African Art

"Winter is better. You can't get nothing on a summer day. You can't get no help in the summer. I don't have no place to stay, but I sleep out here sometimes on the streets. I try to make a little money to buy me a little something to eat because I don't like eating out of trash cans. That makes me sick." Joe Rubino/Close Up Baltimore hide caption

itoggle caption Joe Rubino/Close Up Baltimore

The Weinfeld Family, 2009. Photographer Frederic Brenner, who took this photo, created This Place, an exhibit that features the work of 12 internationally acclaimed photographers in Israel and the West Bank. Frederic Brenner/Courtesy of Howard Greenberg Gallery hide caption

itoggle caption Frederic Brenner/Courtesy of Howard Greenberg Gallery

"Amanda and her Cousin Amy": Mary Ellen Mark photographed Amanda Marie Ellison, 9 (right), and Amy Minton Velasquez, 8, in Valdese, N.C., in 1990. Courtesy of Mary Ellen Mark Studio and Library hide caption

itoggle caption Courtesy of Mary Ellen Mark Studio and Library