A modern stele next to the Biedieli beacon tower inscribed with the words "Great Wall" in both Chinese and Uyghur languages in Wushi county, Aksu prefecture, Xinjiang Uygur autonomous region, Sept. 23, 2024. [Photo by Xu Xiaoxuan/China.org.cn]
Constructed in the Eastern Han dynasty (25-220), the Biedieli beacon tower in Wushi county, Xinjiang's Aksu prefecture, is the westernmost beacon tower on the Great Wall.