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.)

Children play on top of an old plane's fuselage at a dump site in Paranaque city, Metro Manila, Philippines January 21, 2017. (Photo by Ezra Acayan/Reuters)

A participant holds his dog as colored powder is thrown into the air during the Color Run in Lausanne, Switzerland, 12 September 2015. The international 5km running event is inspired by the Hindu Holi spring festival of colors. (Photo by Valentin Flauraud/EPA)

A group of youngsters dressed as ghouls and zombies for Halloween parade in downtown Lisbon, Portugal, Friday, October 31, 2014. (Photo by Francisco Seco/AP Photo)

Protesters march during a demonstration, Tuesday, October 18, 2022 in Marseille, southern France. France is in the grip of transport strikes and protests for salary raise on Tuesday that threaten to dovetail with days of wage strikes that have already hobbled fuel refineries and depots, sparking chronic gasoline shortages around the country. (Photo by Daniel Cole/AP Photo)

Zombie Boy, who holds a Guinness World Record for most bones inked on a human body, gave Londoners a fright on October 5, 2016 as he was spotted at commuter hotspots across the capital to promote Thorpe Park’s new Halloween attraction. Canadian born Zombie Boy has 90% of his body covered in tattoos with a value of over $20,000 in total, including an entire skeleton and skull on his face, visited Canary Wharf, Oxford Street and Soho. (Photo by Rex Features)

Ex On The Beach star Charlotte Dawson out on the town with friends on the party island Ibiza, Spain on October 3, 2016. (Photo by Jon Baxter/ICelebTV)

Members of a cheerleading team warm- up during the Russian Cheerleading Championship of students in Moscow on November 20, 2016. (Photo by Natalia Kolesnikova/AFP Photo)