Over 1,000 illuminated drones display a pattern of "Heart to Heart, @Future" in the night sky above the West Lake to welcome the 200-day countdown to the 19th Asia Games in Hangzhou, capital city of east China's Zhejiang Province, Feb. 21,2022. (Photo: China News Service/Wang Gang)

Over 1,000 illuminated drones display the patterns of Leifeng Pagoda and Three Pools Mirroring the Moon, the most renowned scenic spots in the West Lake Scenic Area, in the night sky above the West Lake to welcome the 200-day countdown to the 19th Asia Games in Hangzhou, capital city of east China's Zhejiang Province, Feb. 21,2022. (Photo: China News Service/Wang Gang)

Over 1,000 illuminated drones display the pattern of a torch in the night sky above the West Lake to welcome the 200-day countdown to the 19th Asia Games in Hangzhou, capital city of east China's Zhejiang Province, Feb. 21,2022. (Photo: China News Service/Wang Gang)

Over 1,000 illuminated drones display Chinese characters of "200-day countdown to Hangzhou Asia Games" in the night sky above the West Lake to welcome the 200-day countdown to the 19th Asia Games in Hangzhou, capital city of east China's Zhejiang Province, Feb. 21,2022. (Photo: China News Service/Wang Gang)

Over 1,000 illuminated drones display the pattern of the mascot of Hangzhou Asia Games in the night sky above the West Lake to welcome the 200-day countdown to the 19th Asia Games in Hangzhou, capital city of east China's Zhejiang Province, Feb. 21,2022. (Photo: China News Service/Wang Gang)

Over 1,000 illuminated drones display the pattern of a torch in the night sky above the West Lake to welcome the 200-day countdown to the 19th Asia Games in Hangzhou, capital city of east China's Zhejiang Province, Feb. 21,2022. (Photo: China News Service/Wang Gang)

Over 1,000 illuminated drones display the pattern of the main venue of Hangzhou Asia Games in the night sky above the West Lake to welcome the 200-day countdown to the 19th Asia Games in Hangzhou, capital city of east China's Zhejiang Province, Feb. 21,2022. (Photo: China News Service/Wang Gang)