Queen Elizabeth II is greeted by Prince Charles, Prince of Wales as she arrives for the final night of her 90th Birthday Celebrations at Windsor on May 15, 2016 in Windsor, England. Photo: Reuters
An Afghan policeman keeps watch in front of shipping containers that blocked streets leading to Kabul's government and diplomatic area in Kabul, Afghanistan May 16, 2016. Photo: Reuters
A woman votes at a polling station during the presidential elections in Santo Domingo May 15, 2016. Photo: Reuters
U.S. President Barack Obama accepts an honorary degree at High Point Solutions Stadium during Rutgers University's 250th commencement exercises, New Brunswick, New Jersey, May 15, 2016. Photo: Reuters
A clothing shop displays its merchandise beside a damaged building in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria, May 15, 2016. Photo: Reuters
