Introduction to Longxi Hall: In the twelfth year of Zhenguan in the Tang Dynasty, Emperor Taizong issued an edict to the world, and Longxi became the county commander surnamed Li. Since then, the county titles and hall names of Li surnamed at home and abroad have been named after Longxi. Longxi Hall is located on Renshou Mountain, and is divided into hall archway, Taibai Restaurant, Yingbin area, Chaozu area, ancestor worship area and other building complexes. The main sacrificial hall in the middle courtyard is a mountain-top structure with double eaves, carved beams and painted pillars, and plaques hung on the eaves.