A Nepali child holds a toy panda during a cultural exchange program at Patan Durbar Square in Lalitpur, Nepal, Dec 23, 2016. The program was organized to highlight the cultural attractions of Chengdu, capital of Southwest China's Sichuan province, and to share those features with Nepali people. Kathmandu formally established sister-city relationship with Chengdu on Friday. [Photo/Xinhua]