Students pose for photos on their visit to a coal museum, which is located underground at the Jinhuagong National Mine Park in Datong City, north China's Shanxi Province, May 16, 2017. (Xinhua/Cao Yang)
In pics: Jinhuagong National Mine Park in north China's Shanxi
Xinhua| 2017-05-17 12:29:18|Editor: Hou Qiang
KEY WORDS: Park
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