A model wears a floral headdress at the Royal Horticultural Society's Chelsea Flower show in London, Britain, May 22, 2017. The prestigious Chelsea Flower Show, held annually since 1913 in the Royal Hospital Chelsea grounds, is open to the public from the 23rd to the 27th of May, 2017. (Photo by Dylan Martinez/Reuters)

People walk on the street in Samara, Russia on July 18, 2017. (Photo by David Mdzinarishvili/Reuters)

An incredible moon rise behind the World Trade Center, Manhattan, New York on August 23, 2016. The breath-taking photo was taken by photographer Jennifer Khordi. She said: it was just absolutely amazing to see this. (Photo by Jennifer Khordi/Caters News Agency)

Palestinians kids from the West Bank Palestinian village Umm Al Rajaj cross the Meitar checkpoint into Israel on their way to the beach of Tel Aviv for the first time, Israel, 10 August 2016. A group of humanitarian Israeli women called in Arabic “Min Al Baher” (from the sea) voluntarily arranges authorizations and transportation for Palestinians families that live in the West Bank to cross into Israel in order to visit the sea for the first time. (Photo by Abir Sultan/EPA)

A hot air ball balloon floats past while people stand in line to climb the Pyramid of the Sun and welcome the spring equinox in the pre-hispanic city of Teotihuacan, on the outskirts of Mexico City, Mexico, March 20, 2016. Spring equinox in Teotihuacán is an annual event which takes place around the 20th and 21st of March at the pre-Hispanic site of Teotihuacán, Mexico. This event is mirrored by other similar events in other pre-Hispanic sites such as Chichén Itzá and Malinalco, Mexico State. (Photo by Edgard Garrido/Reuters)

A girl cover her face while riding a motorcycle as haze shrouds a street near Tanjung Siapi Api port in Palembang, on the Indonesian island of Sumatra, September 19, 2015. Indonesia will take 30 days to bring smouldering forest fires under control, the national disaster management agency said on Friday, as smog from the fires pushes pollution in Southeast Asia to record highs. (Photo by Reuters/Beawiharta)

Dancers from the Philadelphia Ballet perform for Pope Francis (R) as he attends the Festival of Families rally in Philadelphia, Pennsylvania September 26, 2015. (Photo by Brian Snyder/Reuters)

A girl with her face painted to look like the popular Mexican figure called "Catrina", jumps as she takes part in the annual Catrina Fest in Mexico City November 1, 2015. (Photo by Carlos Jasso/Reuters)