2. Longmen Grottoes are one of the treasures of stone carving art in China. Now it is a world cultural heritage, a national key cultural relic protection unit and a national AAAAA-level tourist attraction. It is located in Longmen Mountain and Xiangshan Mountain on both sides of the Yihe River in Luolong District, Luoyang City, Henan Province. Longmen Grottoes, Mogao Grottoes, Yungang Grottoes and Maijishan Grottoes are also called the four major grottoes in China.
3. The Longmen Grottoes were dug in the reign of Emperor Xiaowen of the Northern Wei Dynasty, and lasted for more than 400 years in the Eastern Wei Dynasty, the Western Wei Dynasty, the Northern Qi Dynasty, the Sui Dynasty, the Tang Dynasty, the Five Dynasties and the Song Dynasty, with a length of 1 km from north to south. Today, there are 2345 grottoes, more than 654.38 million statues and more than 2800 inscriptions. Among them, Wu Zetian carved Lushena Buddha at Fengxian Temple in Longmen Grottoes. After the news that Luoyang Weizi built a paradise reached Japan, Emperor Shengwu made an oath of "I will build it too", so he established Dongda Temple in Nara (Heichengjing). Twenty products of Longmen is the essence of Weibei calligraphy, and the tablet of Yique Buddha niche written by Chu Suiliang is a model of regular script art in the early Tang Dynasty.