A staff member shows an immersive classroom system at a technology firm stationed in China Artificial Intelligence Town in Hangzhou, capital of east China's Zhejiang Province, June 6, 2019. The China Artificial Intelligence Town in Hangzhou has so far attracted 17 high-tech research institutions and about 350 creative projects in the big data, cloud computing and the Internet of Things (IoT) industries, supporting them with optimised infrastructure and working environment as well as financing and policy-related services. (Xinhua/Xu Yu)