A protester uses molotov cocktails against riot police during May Day protests on May 1, 2010 in Athens, Greece. (Photo by Milos Bicanski /Getty Images)

Saraa Mutawkil (R), 18, practises boxing at Al Rabie club in Omdurman May 10, 2016. (Photo by Mohamed Nureldin Abdallah/Reuters)

Ally Brooke, from left, Dinah-Jane Hansen, Camila Cabello, Lauren Jauregui and Normani Hamilton of Fifth Harmony, perform “Work From Home” at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 22, 2016, in Las Vegas. (Photo by Chris Pizzello/Invision/AP Photo)

“A Mothers Tail”. A baby cub pulls on his mother's tail to get attention. Photo location: Masai Mara, Kenya. (Photo and caption by Tori Marsh/National Geographic Photo Contest)

A girl clings to her mother as they travel on a flooded street amid heavy rainfall in Shenzhen, Guangdong province, China, July 24, 2015. Approximately a million people have been affected by severe downpours in several Chinese provinces, causing collapsed houses, decimating crops as well as blocking highways, reported Xinhua News Agency. (Photo by Reuters/Stringer)

A farmer arranges vegetable at a greenhouse on January 29, 2021 in Hukou County, Jiangxi Province of China. (Photo by Zhang Yu/VCG via Getty Images)

Hot air balloons take to the skies as they participate in the mass assent at sunrise on the second day of the Bristol International Balloon Fiesta on August 11, 2017 in Bristol, England. More than 130 balloons have gathered for the four day event, now in its 39th year and now one of Europe's largest annual hot air balloon events, being hosted in the city that is seen by many as the home of modern ballooning. (Photo by Matt Cardy/Getty Images)

Italian blogger and fashion designer Chiara Ferragni poses as she arrives for the amfAR charity dinner during the fashion week in Milan, Italy, Thursday, September 21, 2017. (Photo by Antonio Calanni/AP Photo)