This photo taken on Nov. 8, 2023 shows a historical stone wall, a part of Hongze Lake Irrigation System in Huai'an, east China's Jiangsu Province. The Hongze Lake Irrigation System in eastern Jiangsu Province is a water storage irrigation area. Since the Eastern Han Dynasty (25-220), ancient people have diverted water for irrigation and farming. The irrigation system, which has been designated as World Heritage Irrigation Structures (WHIS) in 2023, nowadays keeps irrigating farmland. (Xinhua/Ji Chunpeng)
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