777 drones performed a light show in Changsha, capital city of Central China's Hunan Province, to mark the Qixi festival, or Chinese Valentine's Day, which fall
2018-08-22 14
777 drones performed a light show in Changsha, capital city of Central China's Hunan Province, to mark the Qixi festival, or Chinese Valentine's Day, which falls on Aug. 17 this year.
