A visitor is reflected in a light installation at Mulberry Lights on Regent Street in London, UK on November 16, 2018. Visitors have fun taking selfies and posing with the colourful light installations. Mulberry Lights is a series of illuminating interactive experiences that celebrate how light, colour, shapes and people come together to create a modern British Christmas. (Photo by Imageplotter/Rex Features/Shutterstock)

Sukhoi Su-30SM jet fighters of the Russkiye Vityazi (Russian Knights) aerobatic team perform during a demonstration flight in Krasnoyarsk, Russia October 6, 2018. (Photo by Ilya Naymushin/Reuters)

A child wearing a costume runs up the steps during Purim celebrations at the Coral Temple synagogue in Bucharest, Romania, Wednesday, March 20, 2019. Children put on fancy costume dress joining dozens of believers from Romania's Jewish community who attended a Purim service to celebrate the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. (Photo by Vadim Ghirda/AP Photo)

Soyuz MS-12 spacecraft with crew members of Expedition 59/60 Russian cosmonaut Alexey Ovchinin, NASA astronauts Christina Koch and Nick Hague lifts off from the launch pad at the Russian leased Baikonur cosmodrome, Kazakhstan, 15 March 2019. Hague, Koch, and Ovchinin will spend six-and-a-half months living and working aboard the International Space Station. (Photo by Sergei Ilnitsky/EPA/EFE)

Extras in the arena of the “Fete des Vignerons” (winegrowers' festival in French), during the last rehearsal in Vevey, Switzerland, 17 July 2019. Organized by the brotherhood of winegrowers, the event will celebrate winemaking from 18 July to 11 August. The arena has a capacity of 20,000 spectators and hosts a giant central LED floor of approximately 800 square meters. (Photo by Laurent Gilliéron/EPA/EFE)

Shaolin boys practice kung fu in the sweltering heat during the zen shaolin music ceremony at shaolin temple, Dengfeng, Henan province, China on August 4, 2019. Shaolin unique skills include: shaolin arhat formation, three gun sashimi, shaolin stick, shaolin stone lock skill, iron hand splitting bricks, water training, fist and foot sparring. (Photo by Sipa Asia/Rex Features/Shutterstock)

A Syrian boy plays with the head of a sacrificed sheep at a DIP camp for Interally Displaced Persons near the town of Aqrabat in Syria's northern Idlib province on August 12, 2019. Known as the “big” festival, Eid Al-Adha is celebrated each year by Muslims sacrificing various animals according to religious traditions, including cows, camels, goats and sheep. The festival marks the end of the Hajj pilgrimage to Mecca and commemorates Prophet Abraham's readiness to sacrifice his son to show obedience to God. (Photo by Aaref Watad/AFP Photo)

Male and female bodybuilders prepare backstage to compete during the Asia Pacific Bodybuilding Championships 2019 in Bangkok, Thailand, 17 August 2019. Hundreds of bodybuilders from Asia Pacific countries are set to flex their muscles to compete in the contest. (Photo by Rungroj Yongrit/EPA/EFE)