Introduction to the tile-shaped boulders: A large and wide tile-shaped boulder stands slanted on the side of the cliff, shaped like tiles. Under the tiles, it becomes a natural stone house with an interior area of ​​more than 20 square meters. It provides shelter from wind and rain, cool in summer and warm in winter. In the past, Huashan Taoists put beds and pillows in them and often used them as living rooms.