
A tourist enjoys snow scenery on the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province, Jan. 16, 2024. [Xinhua/Liu Xiao]

Tourists enjoy snow scenery on the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province, Jan. 16, 2024. [Xinhua/Zou Jingyi]

Tourists take a selfie on the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province, Jan. 16, 2024. [Xinhua/Liu Xiao]

A drone photo taken on Jan. 16, 2024 shows tourists visiting the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province. [Xinhua/Liu Xiao]

A drone photo taken on Jan. 16, 2024 shows tourists visiting the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province. [Xinhua/Liu Xiao]

Tourists take a selfie on the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province, Jan. 16, 2024. [Xinhua/Zou Jingyi]

Tourists enjoy snow scenery at the Giant Wild Goose Pagoda in Xi'an, northwest China's Shaanxi Province, Jan. 16, 2024. [Xinhua/Zhang Jingpin]

Tourists play with snow on the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province, Jan. 16, 2024. [Xinhua/Zou Jingyi]

An aerial drone photo taken on Jan. 16, 2024 shows a view of the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province. [Xinhua/Liu Xiao]

An aerial drone photo taken on Jan. 16, 2024 shows a view of the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province. [Xinhua/Liu Xiao]

A drone photo taken on Jan. 16, 2024 shows tourists visiting the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province. [Xinhua/Liu Xiao]

A drone photo taken on Jan. 16, 2024 shows tourists visiting the snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province. [Xinhua/Liu Xiao]