The "City Hall Winter Lights" show is staged outside the City Hall in San Francisco, the United States, Dec. 16, 2025. (Photo by Liu Yilin/Xinhua)

The "City Hall Winter Lights" show is staged outside the City Hall in San Francisco, the United States, Dec. 16, 2025. (Photo by Liu Yilin/Xinhua)

People enjoy the "City Hall Winter Lights" show outside the City Hall in San Francisco, the United States, Dec. 16, 2025. (Photo by Liu Yilin/Xinhua)

People enjoy the "City Hall Winter Lights" show outside the City Hall in San Francisco, the United States, Dec. 16, 2025. (Photo by Liu Yilin/Xinhua)