Aerial photo taken on Oct. 30, 2019 shows the scenery of Leitai Park in Wuwei City, northwest China's Gansu Province. Wuwei is home to a large number of bronze artifacts, including the galloping horse treading on a flying swallow that was unearthed from a tomb of the Eastern Han Dynasty (25 A.D. - 220 A.D.). (Xinhua/Guo Gang)