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)

An artist shows her hands after working on a wall as part of a campaign to call for coexistence and the renouncement of violence through the painting of walls in Sanaa, Yemen March 15, 2015. (Photo by Mohamed al-Sayaghi/Reuters)

Palestinians perform to amuse people with a wire which ignites sparks during the Islamic holy fasting month of Ramadan, on April 03, 2023 in Gaza City, Gaza. (Photo by Mustafa Hassona/Anadolu Agency via Getty Images)

A Palestinian rides with the body of an Israeli killed by Hamas militants in a kibbutz near the Gaza Strip fence in Gaza City, Saturday, October 7, 2023. (Photo by Abed Abu Reash/AP Photo)

Palestinian youths from the freestyle parkour team in Gaza practice their skills at the beach in the northern Gaza Strip on August 29, 2023. (Photo by Mahmoud Issa/SOPA Images/Rex Features/Shutterstock)

A runner competes in the Great Wall Marathon at the Huangyaguan Great Wall outside Beijing, China, May 18, 2019. (Photo by Thomas Peter/Reuters)

A woman holding a girl reacts after Israeli airstrikes hit Ridwan neighborhood of Gaza City, Gaza on October 23, 2023. (Photo by Ali Jadallah/Anadolu via Getty Images)

A Palestinian fisherman cleans up his fishing net after the Israeli decision to close Gaza's fishing zone, on the beach in Gaza City, Tuesday, August 18, 2020. (Photo by Khalil Hamra/AP Photo)