Nanjing city wall museum opens for trial service (4)

Photo taken on Dec. 28, 2021 shows the inside view of the exhibition hall of the city wall museum of Nanjing in Nanjing, capital of east China's Jiangsu Province. The Nanjing city wall museum opened for trial service here Tuesday. It will showcase the historic and cultural value of the Nanjing city wall from various aspects. (Xinhua/Ji Chunpeng)