File photo taken on April 10, 2017 shows the Wenfeng Pagoda in Luoyang, central China's Henan Province. The pagoda, first built in the Song Dynasty (960-1127) and destroyed at the end of the Ming Dynasty (1368-1644), was reconstructed in the Qing Dynasty (1644-1911). Pagodas built in ancient times in Henan act not only as landmarks for sight-seeing, but also as observers of the Chinese history. (Xinhua/Li An)