Drones make up Chinese characters saying "empowering economy" during a drone light display in southwest China's Chongqing, Aug. 26, 2019. (Xinhua/Wang Quanchao)
Drones make up a bridge pattern during a drone light display in southwest China's Chongqing, Aug. 26, 2019. (Xinhua/Wang Quanchao)
Drones make up a robot pattern during a drone light display in southwest China's Chongqing, Aug. 26, 2019. (Xinhua/Wang Quanchao)
Drones make up a robot pattern during a drone light display in southwest China's Chongqing, Aug. 26, 2019. (Xinhua/Wang Quanchao)
