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)

Dozens of hot air balloons fill the sky on the second day of the 2024 International Balloon Festival (FIG) in Leon, Mexico, 16 November 2024. (Photo by Luis Ramirez/EPA)

A policeman stops a cyclist as demonstrators from Extinction Rebellion (XR) protest during the NATO Summit by blocking the A12 highway in The Hague, The Netherlands, 25 June 2025. The Netherlands, for the first time in NATO's history of existence, is hosting a NATO summit. (Photo by Sebastiaan Barel/EPA)

A police officer adjusts her helmet on the sidelines of an anti-government protest against food scarcity at soup kitchens and economic reforms proposed by President Javier Milei, in Buenos Aires, Argentina, May 7, 2024. (Photo by Natacha Pisarenko/AP Photo)

Children enjoy skating at the ice rink built at the Christmas market outside of the Schoenbrunn imperial palace just few days before Christmas in Vienna, Austria on December 20, 2024. Schoenbrunn Palace was the main summer residence of the Habsburg rulers. (Photo by Joe Klamar/AFP Photo)

A man holds on a rope as he tries to board a truck while crossing floodwaters brought by typhoon Koppu that battered Candaba town, Pampanga province, north of Manila October 20, 2015. Typhoon Koppu swept across the northern Philippines killing at least nine people as trees, power lines and walls were toppled and flood waters spread far from riverbeds, but tens of thousands of people were evacuated in time. (Photo by Romeo Ranoco/Reuters)

A burning tank is in Daraa, on March 9, 2013. (Photo by Ali Abu-Salah/Reuters/Shaam News Network via The Atlantic)

Actress Frederique Bel attends the Opening ceremony and the “Grace of Monaco” Premiere during the 67th Annual Cannes Film Festival on May 14, 2014 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)