Introduction to Longmen Tianguan Scenic Area: Longmen Tianguan is located in the northwest of Yesanpo Geopark. It is an important pass from Kyoto to the outside of the Great Wall and a battleground for military strategists of all ages. Therefore, it has left behind a large number of humanistic and historical relics, with "cultural "Promenade". There are the Dalongmen Castle of the Ming Dynasty, the Caicun'an Great Wall and the largest group of cliff carvings from the Jin, Ming and Qing dynasties in North China. Among them, the characters of "Wanren Tianguan" and "Qianfeng Gongli" are 2.15 meters high, and the writing force is powerful and spectacular.