Chen Jing (L) takes photos of a section of the ancient Great Wall in Yanchi County, northwest China's Ningxia Hui Autonomous Region, Aug. 17, 2023.

Yanchi County, known as a "Museum of the Great Wall," is home to a 259-km section of the ancient Great Wall.

Chen Jing and her husband Gao Wandong have been committed to documenting the Yanchi section of the ancient great wall since 2008. So far, they have driven over 100,000 km and taken more than 100,000 photos during the exploration.

The couple also published a photo album and launched a museum to better promote the Great Wall culture. (Xinhua/Lian Zhen)