Where is the Longmen Grottoes? When will it be excavated? What are the characteristics?

Longmen Grottoes, located on the Yishui River in the south of Luoyang, Henan Province, were dug on the east and west hills. They are large grottoes excavated after the Northern Wei Dynasty moved its capital to Luoyang. The representative caves of Longmen Grottoes in the Northern Wei Dynasty are Binyang Cave, Guyang Cave, Lotus Cave and Cave Temple Cave. In the Buddha statue, there are many ribbons with coats off, dense pleats, robes and skirts; The artistic style has changed from the roughness of Yungang to the elegance and dignity of Longmen, making it more distinctive in national characteristics and Central Plains style, which is an important link in the formation of Buddhist sculpture art in China.