Unmanned drones create the image of Congcong, one of the mascots of the 19th Asian Games Hangzhou 2022 on Feb 21, 2022. [Photo/IC]
The 19th Asian Games Hangzhou 2022 will open on Sept 10. To mark the 200-day countdown to this big event, hundreds of unmanned drones came together on Feb 21 to light up the sky of Hangzhou.