Tianmen Mountain literally means the Heaven Gate Mountain. It is named so after the Tianmen Cave in the scenic area, which looks like a door leading to the heaven hanging in the air, shrouded by mist throughout the year. Walk along the Heaven-linking Avenue, and you will reach the Tianmen Cave. The Tianmen Mountain Temple, Glass Skywalk, and Guigu Plank Road are also some of the best highlights in the mountain.