Aerial photo shows the China Pavilion at the International Horticultural Exhibition in Yanqing District of Beijing, capital of China, on Oct. 6, 2019 . The 2019 Beijing International Horticultural Exhibition will be closed on Oct. 9. Since its opening in April, the expo has held 3,284 events, attracting 9.34 million visitors. (Xinhua/Cai Yang)