A young girl plays on the glass bottom platform of the Oriental Pear TV Tower as she travels with her family on the second day of the Chinese Lunar New Year holiday, also known as Spring Festival, in Shanghai, China on February 18, 2018. Some 287 million tourists travelled in China during the first four days of the week-long Chinese Lunar New Year holiday, up 11.1 percent from the same period last year, new data showed Sunday. (Photo by Imaginechina/Rex Features/Shutterstock)

British theoretical physicist Stephen Hawking, Cambridge University Professor and Fellow, circa 1985. Stephen Hawking, the brightest star in the firmament of science, whose insights shaped modern cosmology and inspired global audiences in the millions, has died aged 76. (Photo by Gemma Levine/Getty Images)

An ethnic Lisu man dances barefoot on hot charcoal embers to celebrate the annual Knife Pole Festival in Luzhang township of Nujiang Lisu Autonomous Prefecture in Yunnan province, China, March 29, 2018. (Photo by Aly Song/Reuters)

A man rides a bike on a submerged road alongside a boat at Demra area in Dhaka on July 24, 2020. As many as 20 districts including the latest additions Chandpur, Brahmanbaria, and Naogaon have so far been hit with the worsening flood situation across Bangladesh and many more areas might be inundated if the situation does not improve soon, said Flood Forecasting and Warning Centre (FFWC). (Photo by Sultan Mahmud Mukut/SOPA Images/LightRocket via Getty Images)

Masai women dressed in traditional clothes wear surgical masks as they wait for a ceremony marking World Elephant Day in the Amboseli National Park, Kenya, August 12, 2020. (Photo by Baz Ratner/Reuters)

Murad Khydyrov, horse and monkey trainer at the Great Moscow State Circus, and chimpanzee named Micky get ready for a rehearsal of the show called “History” as the circus prepares for its new season, which is to begin on September 19, in Moscow on September 17, 2020. (Photo by Natalia Kolesnikova/AFP Photo)

A man reacts to being warned by a British Transport Police officer for not wearing a face mask at King's Cross underground station, London, England on October 8, 2020. (Photo by Jonathan Brady/PA Images via Getty Images)

A boy flies a handmade kite from a roof, following the outbreak of the coronavirus disease (COVID-19). in Old Cairo, Egypt on July 26, 2020. (Photo by Amr Abdallah Dalsh/Reuters)