Cheng Hong (C), the deputy mayor of Beijing, shows the flag of the Bureau of International Expositions (BIE) with BIE President Steen Christensen (L) at the closing ceremony of the 2016 Antalya Expo in Antalya, Turkey, Oct. 30, 2016. China's Beijing on Sunday officially took over the honor to hold the next A1 level of World Botanic Expo during the closing ceremony of 2016 Antalya Expo in the southern Turkish Mediterranean resort. (Xinhua/Zou Le)