Pagodas in Henan: landmarks for sight-seeing and observers of Chinese history

File photo taken on April 25, 2017 shows the the Pagoda of Tianning Temple in Anyang, central China's Henan Province. The pagoda has a history of over 1,000 years. 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)