People enjoy a light show at the Olympic Park in Seoul, South Korea, Nov. 13, 2020. A light show with 315 drones was staged here on Friday.Photo:Xinhua

Photo taken on Nov. 13, 2020 shows a light show at the Olympic Park in Seoul, South Korea. A light show with 315 drones was staged here on Friday.Photo:Xinhua

Photo taken on Nov. 13, 2020 shows a light show at the Olympic Park in Seoul, South Korea. A light show with 315 drones was staged here on Friday.Photo:Xinhua

Photo taken on Nov. 13, 2020 shows a light show at the Olympic Park in Seoul, South Korea. A light show with 315 drones was staged here on Friday.Photo:Xinhua

Photo taken on Nov. 13, 2020 shows a light show at the Olympic Park in Seoul, South Korea. A light show with 315 drones was staged here on Friday.Photo:Xinhua