Mianshan Scenic Area in Jiexiu, Shanxi Province, is probably the largest 5A-level scenic area I have ever seen. If you drive, you can park your car at the parking lot at the entrance of the scenic area, and then take the scenic bus to enter the scenic area. The road is very dangerous. The scenic area is very large. My family and I only went to the innermost ditch, which is the end point called Water Curtain Cave. It took two hours to walk. The scenery along the way is very beautiful.