Introduction to murals: A large number of precious cultural relics and exquisite murals were unearthed in the tomb chamber, all of which are realistic. Among them, Sanle pictures, tea ceremony pictures, astronomical pictures, travel pictures, maid pictures, and scripture preparation pictures were discovered for the first time in China, and are of great significance to the study of the history, culture, astronomy, folk customs, and clothing of the Liao Dynasty. Domestic and foreign academic circles also hail it as an "underground art gallery" and a "treasury of culture and art."