Children playing on Walled City rooftop in Hong Kong, 1989. The lack of formal governance in the Walled City led to challenges, but it also fostered a unique system of informal social order. (Photo by Greg Girard/The Guardian)

Students exercise in body training at Bishan Vocational Education Center in Chongqing, southwest China, January 13, 2016. These students were trained to be stewardesses of the high-speed train. (Photo by Xie Jie/Xinhua)

Israelis take cover as a siren sounds a warning of incoming rockets fired from the Gaza Strip, in Ashkelon, southern Israel, Sunday, May 16, 2021. (Photo by Heidi Levine/AP Photo)

A camel rider push his camel in the annual Wadi Zalaga competition between two rival Bedouin tribes in the South Sinai region, Egypt on January 10, 2023. (Photo by Celestino Arce/NurPhoto/Rex Features/Shutterstock)

Macaques huddle together for warmth at a hot spring in Nagano, Japan in the last decade of December 2023. Known as snow monkeys, the animals soak in the 40°C water every day during cold weather, spending their bathtime grooming, snoozing and playing on visitors’ camera tripods. (Photo by David Lazar/Animal News Agency)

Dani Alves of Paris Saint-Germain and Spanish model Joana Sanz are pictured inside the photo booth prior to The Best FIFA Football Awards at Royal Festival Hall on September 24, 2018 in London, England. (Photo by Michael Regan – FIFA/FIFA via Getty Images)

Japan's Naomi Osaka visits Lone Pine Koala Sanctuary ahead of the Brisbane International tennis tournament in Brisbane on December 29, 2023. (Photo by Patrick Hamilton/AFP Photo)

St. Mark's and Panagia Erithiani church congregations perform “Rocket War” by firing thousands of home-made rockets across the sky during Greek Orthodox Easter celebrations in the town of Vrontados on the Greek island of Chios on April 19, 2014. Greek habit of throwing handmade rockets with the aim of hitting the bell tower of the church at the other side during the celebration of the service at midnight before Easter Sunday. (Photo by Cem Oksuz/Anadolu Agency/Getty Images)