Lying in Gubeikou Town northeast of Miyun District about 120 kilometers from Beijing, Simatai Great Wall stretches about 5 kilometers from Wangjing Tower in the east and connects to Houchuankou in the west. It has 35 beacon towers.

Constructed under the supervision of Qi Jiguang, a famous general in the Ming Dynasty (1368-1644), it is the only part of the Great Walls that still has the original appearance of the Ming Dynasty. The eastern part of the Great Wall has 15 watchtowers and was constructed on the steep ridge of the mountain. It looks like a winding dragon jumping out of the lake. There, tourists can appreciate the Stairway to Heaven, the Fairy Tower, the Heaven Bridge and the Wangjing Tower. In order to reach the Fairy Tower, tourists must climb the 85 degree slope Stairway to Heaven which is about 100 meters long and allows only one person to pass. Legend has it that the Fairy Tower was transformed from an antelope and that once the Lotus Flower Fairy lived there, hence its name. On the tower, there are some marble arches carved with lotus patterns.