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 tiger enjoys frozen food at Rome Zoological Garden “Bioparco” during a heat wave in Rome on July 2, 2025. (Photo by Tiziana Fabi/AFP Photo)

Performers during the New Year's Day Parade in London on Monday, January 1, 2024. (Photo by Victoria Jones/PA Images via Getty Images)

A pupil arrives on the first day of school at Yas American Academy in Abu Dhabi in the last decade of August 2025. (Photo by Victor Besa/The National)

A pelican investigates a fallen ketchup bottle outside a cafe in St James’s Park in London, England on October 9, 2025. The species has lived there for hundreds of years and remain a popular sight for visitors. Introduced in 1664 as a gift from the Russian ambassador, about 40 pelicans have since made the park their home. The bottle was safely retrieved from the pelican. (Photo by Stephen Chung/Alamy Live News)

Serra da Aboboreira Megalithic Set (Meninas do Crasto) on September 24, 2023 in Baiao, Portugal. Since 1978 that Serra da Aboboreira (Aboboreira Mountains) has been the scene of a systematic study of its archeological values, among which are the monuments known as megalithic. These are funerary monuments designing the landscape. These dolmens were constructed with stones (lithos) of medium or large dimensions (mega), which were laid in a, more or less, vertical position. Over these, it was still placed a lid, also of stone. These containers were covered by an artificial mound of earth and stones (dolmen). (Photo by Octavio Passos/Getty Images)

An Indian boy sells flowers to Hindu devotees of Lord Shiva as they perform rituals after collecting water from the river Ganges during the holy month of Shravan, In Allahabad on July 22, 2019. Shravan is considered the holiest month in the Hindu calendar with many religious festivals and ceremonies. (Photo by Sanjay Kanojia/AFP Photo)

A tree stands in a lake in Usingen near Frankfurt, Germany, Wednesday, March 22, 2023, the World Water Day. World Water Day was established in 1992 by the United Nations to spread awareness about the water condition all over the world. (Photo by Michael Probst/AP Photo)