Photo taken on Aug. 14, 2016 shows the Z15 Tower (C), also known as China Zun, under construction at CBD (Central Business District) of the Chaoyang District of Beijing, capital of China. The Z15 Tower now reached the height of 330 meters with 68 finished stories, becoming the highest building in Beijing. It's expected to be 528 meters high with 40 more stories to be constructed. (Xinhua/Luo Xiaoguang)