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)

Musicians play as bathers run into the chilly waters of English Bay while celebrating New Year's Day with the Polar Bear Swim in Vancouver, British Columbia, Canada on January 1, 2024. (Photo by Chris Helgren/Reuters)

Kites fly in the sky during the Kite Show at the historical complex “Fort Konstantin” in city of Kronstadt outside Saint Petersburg, on June 7, 2025. (Photo by Olga Maltseva/AFP Photo)

A Lebanese man rides his horse in a village destroyed by an Israeli air and ground offensive, in the town of Kfar Kila, southern Lebanon, Tuesday, February 18, 2025. (Photo by Hassan Ammar/AP Photo)

Farmers feed crabs under Metasequoia at the Sihong County Ecological Breeding Base in Suqian City, Jiangsu Province, China, on November 19, 2025. (Photo by Costfoto/NurPhoto/Rex Features/Shutterstock)

Corinthians forward Jaqueline Ribeiro (L) celebrates with teammate midfielder Victoria Albuquerque after scoring a goal during the women's Brazilian Championship 2024 final match between Corinthians and Sao Paulo at the Neo Quimica Arena in Sao Paulo, Brazil, on September 22, 2024. (Photo by Miguel Schincariol/AFP Photo)

“The Personal Urban Mobility and Accessibility (PUMA) is an experimental electrically powered road vehicle created by Segway and adopted by General Motors as a concept vehicle representing the future of urban transportation. It operates on two wheels placed side-by-side, a layout that differs in placement from motorcycles which instead have their two wheels placed at the front and rear”. – Wikipedia

The Project P.U.M.A. (Personal Urban Mobility and Accessibility) prototype is displayed for the media April 7, 2009 in New York City. (Photo by Mario Tama/Getty Images)

A Pakistani labourer carries bricks on his back at a construction site at a residential area in Islamabad on March 29, 2017. (Photo by Aamir Qureshi/AFP Photo)