Introduction to Premier Zhou Memorial Room: In the Premier Zhou Memorial Room, a special documentary of the Prime Minister's visit to Datong when he accompanied French President Pompidou in 1973 is played on a loop. In 1973, Premier Zhou Enlai accompanied French President Pompidou to visit the Yungang Grottoes. At that time, the Prime Minister gave instructions to repair the Yungang Grottoes in three years, so he started the three-year Yungang protection project from 1974 to 1976, thus solving the problem of Yungang Grottoes to the greatest extent. Stability issues have changed the appearance of Yungang Grottoes.