Introduction to Shangguan Hall: Shangguan Hall is spacious and bright, 30 meters high and 25 meters wide, and can accommodate thousands of people: there is a giant dragon coiled in the cave, with jade teeth staggered to bite it. There is a mouth to the sky on the dome, with tall pines standing in the gaps between the rocks, flowers and plants nestling against each other, and a giant dragon with its head and tail raised, as if it wants to fly away from the mouth of the sky.