Hangzhou, the host city of the 19th Asian Games, which will take place in September this year, has spruced up its environment in anticipation of the major sporting event and to welcome the new year.

A thousand drones fly over the Hangzhou Olympics Center on Dec 30 and 31, 2021, creating different visuals related to the Asian Games, such as the mascots Chenchen, Congcong and Lianlian, sporting icons, and landmark buildings. [Photo/CFP]