Tourists take photos under ginkgo trees in Yuanmingyuan Park, or the Old Summer Palace, in Beijing, capital of China, Nov. 4, 2020. (Xinhua/Luo Xiaoguang)

A tourist takes photos of ginkgo trees in Yuanmingyuan Park, or the Old Summer Palace, in Beijing, capital of China, Nov. 4, 2020. (Xinhua/Luo Xiaoguang)

Tourists take photos under ginkgo trees in Yuanmingyuan Park, or the Old Summer Palace, in Beijing, capital of China, Nov. 4, 2020. (Xinhua/Luo Xiaoguang)

Tourists visit Yuanmingyuan Park, or the Old Summer Palace, in Beijing, capital of China, Nov. 4, 2020. (Xinhua/Luo Xiaoguang)

Photo taken on Nov. 4, 2020 shows the autumn scenery of Yuanmingyuan Park, or the Old Summer Palace, in Beijing, capital of China. (Xinhua/Luo Xiaoguang)