Tianlongshan Grottoes, located 40 kilometers southwest of Taiyuan City, Tianlong Mountainside, there are 24 caves dug by Dongwei, Beiqi, Yuan and Tang, Dongfeng 8 Grottoes, Xifeng 13 Grottoes, and Shanbei 3 Grottoes. It has provided rich physical materials for future generations to study Buddhism, fine arts, sculpture and architecture with its skill and fine sculpture. It plays an extremely important role in the history of world sculpture art. Tianlong Mountain has been the summer palace of Gao Huan, the father of the emperor of Beiqi, Gao Yang.