Workers repair an ancient building in Xidi Village of Yixian County, Huangshan, east China's Anhui Province, on Sept. 19, 2018. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Chen Haitong)

In this aerial photo taken on Sept. 19, 2018, workers repair an ancient building in Xidi Village of Yixian County, Huangshan, east China's Anhui Province. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Zhang Duan)

A worker repairs an ancient building in Xidi Village of Yixian County, Huangshan, east China's Anhui Province, on Sept. 19, 2018. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Zhang Duan)

A worker repairs an ancient building in Xidi Village of Yixian County, Huangshan, east China's Anhui Province, on Sept. 19, 2018. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Liu Junxi)

Tourists relax in a guesthouse renovated from an ancient building in Nanping Village of Yixian County, Huangshan, east China's Anhui Province, on Sept. 18, 2018. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Liu Xin)

A staff member takes care of plants in a guesthouse renovated from an ancient building in Nanping Village of Yixian County, Huangshan, east China's Anhui Province, on Sept. 18, 2018. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Liu Xin)

Tourists relax in a guesthouse renovated from an ancient building in Nanping Village of Yixian County, Huangshan, east China's Anhui Province, on Sept. 18, 2018. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Qi Wenjuan)

A worker repairs an ancient building in Xidi Village of Yixian County, Huangshan, east China's Anhui Province, on Sept. 19, 2018. Over the years, increasing efforts have been made by authorities of Yixian County to protect and restore the local ancient communities and their classical architecture. (Xinhua/Liu Junxi)