Datong is a city that used to be the capital of a country. So there are many places to visit and watch. The main ones are Yungang Grottoes and Hangkong Temple in Hengshan. The train arrived in Datong in more than three hours. After getting off, I found a taxi and got to Yungang Grottoes for 35 yuan. Just a short time ago, I visited another famous grotto, the Mogao Grottoes in Dunhuang. There is a good comparison between the two. Personally, Yungang Grottoes are more ornamental. Except for two caves which are not photographed, other places can be photographed at will. Yungang Grottoes are mainly stone carvings, and the murals of Mogao Grottoes are another style. By contrast, I prefer Yungang Grottoes. After visiting the Yungang Grottoes, there is a special bus No. 603 at the entrance to the city and the railway station. The car is also free, and there are seats. Upon arrival in the city, check in at the Mega Hotel in Yungang.