A visitor takes pictures of an exhibit "The Voice of Transparent" by Chinese artist Zheng Wenqing at an exhibition in Xiangshan Central Campus of China Academy of Art in Hangzhou, East China's Zhejiang province, Nov 25, 2017. Object of Light, an exhibition of contemporary glass art, opened here on Saturday, highlighting around 90 pieces of artwork by some 30 artists from home and abroad.[Photo/Xinhua]