Visitors examine a sculpture at Silk Road Lights, an exhibition at the Gansu Grand Theater in Lanzhou, Gansu province, Aug 17, 2015. Sixty-eight artists and art critics from China and South Korea are attending the four-day event which started on Monday. Sixty-five sculptures are on display. Lanzhou, a major city along the ancient Silk Road, attracts numerous artists with its unique cultural charm. [Photo by Pei Qiang/Asianewsphoto]