Aerial photo taken on Nov 25, 2019 shows the Shan-Shaan Guildhall architectural complex in Shedian town of Sheqi county, Central China's Henan province. The Shan-Shaan Guildhall was co-built by merchants from Shanxi and Shaanxi provinces who then lived in Sheqi county in the Qing Dynasty (1644-1911) in Shedian, a famous commercial township during the ancient Ming and Qing dynasties.[Photo/Xinhua]