Village chiefs, residents and government officials take to the streets to celebrate the Chienge district's accomplishment of bringing sanitation to every home. Mark Maseko/Courtesy of UNICEF Zambia hide caption

itoggle caption Mark Maseko/Courtesy of UNICEF Zambia

An endangered black rhino is seen in this file photo from the Etosha National Park in norhern Namibia last year. An American hunter has killed one of the animals, under a special permit he bought for $350,000. While the rhinoceros is referred to as black, its colors vary from shades of brown to gray. Barbara Scheer/DPA /LANDOV hide caption

itoggle caption Barbara Scheer/DPA /LANDOV

Tanzanians from far-flung villages were brought to a fancy hotel to discuss natural gas policy. Courtesy of the Center for Global Development hide caption

itoggle caption Courtesy of the Center for Global Development

President Pierre Nkurunziza makes a brief statement at the presidential palace in Bujumbura, Burundi, on Sunday. In his first appearance since a failed coup against his government, Nkurunziza, didn't mention the unrest. Jerome Delay/AP hide caption

itoggle caption Jerome Delay/AP

The Egyptian Muslim Brotherhood's third-highest ranking member and a main financier of the banned movement, Khayrat al-Shater (second from left), and other defendants flash the four-finger salute during their trial in Cairo, Egypt, on Saturday. Ousted President Mohammed Morsi, who was among them, received the death penalty. Khaled Elfiqi/EPA/Landov hide caption

itoggle caption Khaled Elfiqi/EPA/Landov

A boot-drying rack sits empty at the Ministry of Defense Ebola Treatment Unit in Monrovia. Jason Beaubien/NPR hide caption

itoggle caption Jason Beaubien/NPR

Moses Lasana recovered from Ebola, but he faces a range of medical issues and waves of pain. "The pain just come from one part of the body to another," he says. Jason Beaubien/NPR hide caption

itoggle caption Jason Beaubien/NPR

Men run for cover after they hear gunfire in a street in Bujumbura, Burundi, on Thursday, a day after an army general declared he'd toppled the country's president in a coup. Goran Tomasevic /Reuters/Landov hide caption

itoggle caption Goran Tomasevic /Reuters/Landov