Datong is a prefecture-level city in northern Shanxi province, People's Republic of China, located in a basin at an elevation of 1,040 metres (3,410 ft) and bordering Inner Mongolia to the north and west and Hebei to the east. It had a population of 3,318,057 at the 2010 census of whom 1,629,035 lived in the built up area made of 3 out of 4 urban districts, namely Chengqu, Kuangqu and Nanjiao.
The Yungang Grottoes are a collection of shallow caves located 16 km (9.9 mi) west of Datong. There are over 50,000 carved images and statues of Buddhas and bodhisattvas within these grottoes, ranging from 4 centimeters to 7 meters tall. Most of these icons are around 1000 years old.