At dawn on August 13, a cloud sea appears around Simatai Great Wall after summer rain, presenting breathtaking scenes. (Compiled by Wang Qin; Photos: visual.people.cn)

Simatai Great Wall was built during the early Ming Dynasty in the north of Miyun County, 120 kilometers northeast of Beijing. It holds the access to Gubeikou, a strategic pass in the eastern part of the Great Wall.

Simatai Great Wall is the only well-preserved Ming Dynasty Great Wall. It was added to the World Heritage List by UNESCO in 1987.

In 2012, Simatai topped the world's best 25 scenic spots by The Times.