A guard secures gates of a catfish farm visited by a group of foreign reporters in Pyongyang, North Korea April 17, 2017. (Photo by Damir Sagolj/Reuters)
Revellers react after falling in the mud at Worthy Farm in Somerset during the Glastonbury Festival, Britain, June 26, 2016. (Photo by Stoyan Nenov/Reuters)
A reveller, covered in mud, chats with friends during the Glastonbury Festival at Worthy Farm in Somerset, Britain, June 26, 2015. The outdoor festival runs from 24 to 29 June. (Photo by Dylan Martinez/Reuters)
Water is seen discharged over the traditional farm houses at Shirakawa-go, the UNESCO World Heritage site on November 9, 2014 in Shirakawa, Japan. This annual drill is held to prevent fire. (Photo by Kaz Photography/Getty Images)