A man shaves blocks of salt from the Danakil Depression on 28 March 2017, in Afar, Ethiopia. Every morning, hundreds of men converge on a dry lakebed in a remote corner of Ethiopia, where they cleave the ground open with handaxes to extract salt, just as their fathers and grandfathers once did. (Photo by Zacharias Abubeker/AFP Photo)

Dr. P.A. Smithe was sent by the American Red Cross as a doctor and surgeon to work at a hospital in Vienna. He sailed to Europe in December 1915 and returned home in August 1916, according to his daughter, who donated his images to the National World War I Museum. Photo: Turkish army, including cavalry, infantry and artillery. (Photo by Dr. P.A. Smithe/National World War I Museum, Kansas City, Mo.)

67-year-old Guinness Rishi constantly tries to make his family and the entire Indian people by constantly setting new records. He previously became father of the world’s oldest adoptee, after taking custody of his 61-year-old brother-in-law, and built the tallest sugar-cube tower in the world, which stood at 64 inches.

A Bolivian Squirrel monkey plays with a toy football at London Zoo on August 18, 2011 in London, England. Male monkey Bounty has fathered eleven baby monkeys in the last three years since his arrival, enough to make up a football team. His latest offspring named Rolo was the eleventh and arrived last month. (Photo by Dan Kitwood/Getty Images)

For her series “Japanese Whispers”, Belgian photographer Zaza Bertrand headed inside the intimate world of rabuhos – Japanese love hotels. Love hotels became popular in Japan from the 1960s onwards, due to a lack of privacy in many family homes. There are now around 37,000 of these hotels in Japan, allowing short daytime “rests” or overnight stays. (Photo by Zaza Bertrand/The Guardian)

“As you can see I love the Icelandic Horse. Born and raised with them, I love to work with them and watch them ... they have unbelievable network of communication and energy I can´t explain with words”. – Gigja Einarsdottir. Photo: “Runners”. (Photo by Gigja Einarsdottir)

A participant covered in coloured powder gestures as she stands near a Syrian army soldier during “I Love Damascus” marathon at Umayyad Square in Damascus, Syria October 7, 2016. (Photo by Omar Sanadiki/Reuters)