This aerial photo taken on June 29, 2023 shows a partly submerged section of the Great Wall at Panjiakou reservoir in north China's Hebei Province. The Great Wall of China encounters the submersion by water when it meets the Panjiakou reservoir at the border of Qianxi County and Kuancheng Manchu Autonomous County in Hebei Province, creating a unique sight to behold. (Xinhua/Mu Yu)