Visitors take photos at Let the Care Light up the World exhibition in Northeast China's Shenyang, Liaoning province, April 10, 2017. The exhibition features art installations that light up when people approach them. When more people gather, they become brighter. The artworks are created by Xie Yong, a professor with the Art School of Shenyang University, in an attempt to remind people about loving and caring for the world. He believes even subtle actions of human beings are able to light up the world. [Photo/VCG]