Visitors watch an immersive light show at Gulou, or the Drum Tower, in Beijing on Sunday. The site is running an interactive exhibition to illustrate the tower's traditional function as the city's official timekeeper for almost 700 years until 1924. CHEN ZHONGHAO/XINHUA
点击右上角微信好友
朋友圈
请使用浏览器分享功能进行分享