Mengda introduction: The first gate of Tianchi is located at the foot of the Mengda Reserve Mountain, facing south and north. It is the most gorgeous and majestic mountain gate in the reserve. The door is in the shape of a "convex" building layout, with a brick-concrete structure and a length of about 38 meters. The middle part is about 17 meters high, three rooms wide and two rooms deep, with a gable-style roof with double eaves and a descending dragon body kissing the head. The corner ridges are decorated with floral patterns, two continuous high reliefs and round reliefs in the shapes of immortals and animals, chicken feet, elephant trunks, etc. The eaves are decorated with paintings. The buildings on the left and right have rolling shed roofs, about 10 meters high, with each side three rooms wide and one room deep.