Children wave Vietnamese and American flags while waiting for arrival of U.S. President Barack Obama (not pictured) before a welcoming ceremony at the Presidential Palace in Hanoi, Vietnam May 23, 2016. (Photo by Reuters/Kham)
Pigeons cool down at a public fountain on a hot summer day at University Plaza in downtown Bucharest, Romania, 10 June 2020. Temperatures in Bucharest reached 30 degrees Celsius. (Photo by Robert Ghement/EPA/EFE)
A plane leaves Qatar Airport as the sun rises behind the Mosque at Souq Waqif in Doha, Qatar on Friday, December 9, 2022. (Photo by Peter Byrne/PA Images via Getty Images)
A view of migrants on the beach at sunrise after a fail attempt to cross the Channel to the UK on a small boat, in Sangatte, near Calais, France on August 10, 2023. (Photo by Pascal Rossignol/Reuters)
Artem, a serviceman of infantry battalion of the 61st mechanised brigade, pets a dog in a trench at a position near the frontline, in Kharkiv region, Ukraine on January 6, 2024. (Photo by Sofiia Gatilova/Reuters)
A Ukrainian serviceman stands on a flag of Russia's mercenary group Wagner near the Russian border in Sumy region, Ukraine on August 13, 2024. (Photo by Viacheslav Ratynskyi/Reuters)