A man visits a ginkgo forest in Luanxie Village of Shahe City, north China's Hebei Province, Oct. 31, 2019. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Xing Guangli)

Photo taken on Oct. 31, 2019 shows red leaves in Dashuijiao Village of Wu'an City, north China's Hebei Province. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Wang Xiao)

Aerial photo taken on Oct. 31, 2019 shows ginkgo trees along a road in Luanxie Village of Shahe City, north China's Hebei Province. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Xing Guangli)

Photo taken on Oct. 31, 2019 shows ginkgo leaves in Luanxie Village of Shahe City, north China's Hebei Province. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Xing Guangli)

Aerial photo taken on Oct. 31, 2019 shows ginkgo trees along a road in Luanxie Village of Shahe City, north China's Hebei Province. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Xing Guangli)

People visit a ginkgo forest in Luanxie Village of Shahe City, north China's Hebei Province, Oct. 31, 2019. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Xing Guangli)

Aerial photo taken on Oct. 31, 2019 shows red leaves along a road in Wu'an City, north China's Hebei Province. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Wang Xiao)

A visitor takes photos of red leaves in Dashuijiao Village, Wu'an City, north China's Hebei Province, Oct. 31, 2019. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Wang Xiao)

Aerial photo taken on Oct. 31, 2019 shows ginkgo trees in Luanxie Village of Shahe City, north China's Hebei Province. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Xing Guangli)

People visit a ginkgo forest in Luanxie Village of Shahe City, north China's Hebei Province, Oct. 31, 2019. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Xing Guangli)

Aerial photo taken on Oct. 31, 2019 shows red leaves along a road in Wu'an City, north China's Hebei Province. The Taihang mountains attract lots of visitors as the leaves change colors in autumn. (Xinhua/Wang Xiao)