Different types of artificially intelligent (AI) robots are on display at the 2016 AI World Expo, held in Beijing on Oct 18, 2016. One popular exhibit was the "web celebrity" robot Xian'er Robot Monk. Xian'er was designed by researchers and monks at Longquan Temple in Beijing, and made a big splash among netizens when it debuted in 2015 in Guangzhou. (Photo/People's Daily Online)
