Tourists visit the Longmen Grottoes in Luoyang, central China's Henan Province, April 17, 2017. The Longmen Grottoes has entered into tourist rush season. (Xinhua/Zhu Xiang)
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Tourists visit the Longmen Grottoes in Luoyang, central China's Henan Province, April 17, 2017. The Longmen Grottoes has entered into tourist rush season. (Xinhua/Zhu Xiang)
