Photo taken on Dec. 1, 2021 shows the night view of Seoul, South Korea. (Photos: Xinhua)

Photo taken on Dec. 1, 2021 shows the night view of Seoul, South Korea.

Photo taken on Dec. 1, 2021 shows the night view of Seoul, South Korea.

Photo taken on Dec. 1, 2021 shows the night view of Seoul, South Korea.

Photo taken on Dec. 1, 2021 shows the night view of Seoul, South Korea.

Stitched photo taken on Dec. 1, 2021 shows the night view of Seoul, South Korea.