Photo taken on Oct 15, 2019 shows the city gate of the Yingtianmen site museum of the National Archaeological Site Park of Sui-Tang Luoyang City in Luoyang city, Central China's Henan province. In recent days, the Yingtianmen site museum of the park opened to the public. The Yingtianmen gate was built in Sui Dynasty (581-618). [Photo/Xinhua]