Gongyi Grottoes Temple is definitely an underestimated treasure. With a history of 1,500 years, it is the last glory of the Northern Wei Dynasty after the Yungang Grottoes and Longmen Grottoes. You can appreciate the picture of the emperor and empress worshiping Buddha in the grottoes quietly and closely. After the picture of the emperor and empress worshiping Buddha in the Binyang Middle Cave of Longmen Grottoes was stolen in 1935, this is the only one left in China. The smile from the Northern Wei Dynasty has traveled through time and space and is presented in front of us. We must protect it well.