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)

A girl shows off her elaborate outfit at the West Side Hallo Fest, a Halloween festival in Bucharest, Romania, Saturday, October 27, 2023. Tens of thousands streamed last weekend to Bucharest's Angels' Island peninsula for what was the biggest Halloween festival in the Eastern European nation since the fall of Communism. (Photo by Vadim Ghirda/AP Photo)

Oil pools in a leaf on the beach following an oil slick at Tanjong Beach in Sentosa, Singapore on June 15, 2024. (Photo by Edgar Su/Reuters)

French fashion model Cindy Bruna walks the runway of the Julien x Gabriela AW23 show during London Fashion Week at Freemasons Hall on February 19, 2023 in London, England. (Photo by Dave Benett/Getty Images for Julien MacDonald)

Photographer John Fatkin captured these jaw-dropping images of a rainbow and ferry on the River Tyne, England, with the iconic red-painted Herd Groyne Lighthouse. (Photo by Tom Fatkin/Cover Images)

People walk under a light projection during the Shanghai International Light Festival at a shopping mall complex in Shanghai on September 22, 2025. (Photo by Jade Gao/AFP Photo)

The northern lights, or aurora borealis, illuminate the sky over Flakstad beach on Lofoten Islands in the Arctic Circle on September 5, 2017. (Photo by Jonathan Nackstrand/AFP Photo)

A model is seen backstage before the Rochas Spring/Summer 2019 women's ready-to-wear collection show during Paris Fashion Week in Paris, France, September 26, 2018. (Photo by Gonzalo Fuentes/Reuters)