Visitors walk on a plank road with glass floor on the cliff of Baishi Mountain in Laiyuan County, north China's Heibei Province, Sept. 17, 2016. People enjoy the leisure time during the nationwide Mid-Autumn Festival holiday. (Xinhua/Zhu Xudong)
Visitors walk on a plank road with glass floor on the cliff of Baishi Mountain in Laiyuan County, north China's Heibei Province, Sept. 17, 2016. People enjoy the leisure time during the nationwide Mid-Autumn Festival holiday. (Xinhua/Zhu Xudong)