Mexico's most wanted drug lord, Joaquin "El Chapo" Guzmán, stands for his prison mug shot at the Altiplano maximum security federal prison in Almoloya, Mexico. AP hide caption
Supporters of Iraqi cleric Muqtada al-Sadr chant slogans after breaking into Baghdad's fortified Green Zone on Friday. Ahmad al-Rubaye /AFP/Getty Images hide caption
Egyptians pray for the victims of EgyptAir Flight 804 at Al-Thawrah Mosque in Cairo on Friday. The Egyptian military said it had found some wreckage of the plane, which was carrying 66 people when it went down early Thursday over the Mediterranean Sea. Amr Nabil/AP hide caption
A member of Doctors Without Borders looks out over the general hospital in the Central African Republic's capital city, Bangui, in April 2014. Issouf Sanogo/AFP/Getty Images hide caption
Issues on the table at the World Humanitarian Summit range from conflict zones to refugees. Above, a herder moves his goats at the Dadaab refugee camp, created nearly 25 years ago. The Kenyan government now threatens to shut it down. Michelle Shephard/Toronto Star via Getty Images hide caption
People cross a temporary bridge on a parched area of the Ganges River in Allahabad, India, on Thursday. Pacific Press/LightRocket via Getty Images hide caption
Debnath Mondal (front right), who survived a tiger attack in 2010, patrols the banks of the Sundarbans tiger preserve with another forest guard and a boat skipper. David Gilkey/NPR hide caption
For more than 70 years, the false bottom on this mug hid a Holocaust victim's treasures. Mirosław Maciaszczyk/Auschwitz Museum hide caption
Taiwan President Tsai Ing-wen smiles at the crowd on Friday during her inauguration in Taipei, Taiwan. Ashley Pon/Getty Images hide caption
Planes sit on the tarmac at Cairo's airport Thursday after an EgyptAir flight from Paris to Cairo disappeared over the Mediterranean with 66 people onboard. Khaled Desouki/AFP/Getty Images hide caption