Libyan forces allied with the U.N.-backed government fire a shell at Islamic State fighters' positions in Sirte, Libya August 15, 2016. (Photo by Ismail Zitouny/Reuters)

Leidi, a member of the 51st Front of the Revolutionary Armed Forces of Colombia (FARC), poses for a picture at a camp in Cordillera Oriental, Colombia, August 16, 2016. A peace deal will end half a century of war and allow the rebels to reintegrate into Colombian society. (Photo by John Vizcaino/Reuters)

People perform during the traditional Epiphany parade in Malaga, southern Spain, January 5, 2016. Children in Spain traditionally receive their Christmas presents delivered by the Three Wise Men on the morning of January 6, during the Christian holiday of the Epiphany. (Photo by Jon Nazca/Reuters)

A woman jumps with balloons while she poses for a picture at a park in Kiev, Ukraine May 6, 2018. (Photo by Valentyn Ogirenko/Reuters)

A bull hits a reveller during the first running of the bulls of the San Fermin festival in Pamplona, Spain, July 7, 2018. Each day at 8am hundreds of people race with six bulls, charging along a winding, 848.6-metre (more than half a mile) course through narrow streets to the city's bull ring, where the animals are killed in a bullfight or corrida, during this festival dating back to medieval times and also featuring religious processions, folk dancing, concerts and round-the-clock drinking. (Photo by Vincent West/Reuters)

A hummingbird is photographed during the National Orchid Exhibition at the Jose Celestino Mutis Botanical Garden in Bogota, Colombia Septermber 20, 2018. Picture taken September 20, 2018. (Photo by Luisa Gonzalez/Reuters)

A youth skates next to a road in Palembang, South Sumatra, Indonesia on August 15, 2018. (Photo by Edgar Su/Reuters)

Models present creations displayed as part of the “Lingerie Rocks” fashion show, running on the sidelines of Paris Fashion Week, in Paris, France, 20 January 2019. The “Lingerie Rocks” show displays work from 14 lingerie brands, including Antigel, Antinea, Aubade, Chantelle, Empreinte, Eprise, Epure, Implicite, Lise Charmel, Lou, Louisa Bracq, Maison Lejaby, Passionata et Simone Perele. (Photo by Ian Langsdon/EPA/EFE)