If you want to enter into Yunnan, you have to go via the Key to Yunnan. There is a torii on the mountain which is named the Beautiful Sight in South Yunnan. The torii is about 12 meters high and 10 meters wide. It is painted with different colours. It also has up-holding corners. It had been built in the year of Jingtai in the Ming Dynasty. After many times of repair, it still stands there today. On the side facing Guizhou, the earth is reddish brown, and it is always foggy; while on the side facing Yunnan, the earth is brown, and it is always fine. Although there is only a mountain range between the two provinces, they have totally different sights.