Photo taken on May 8, 2017 shows the interior of the Tilya-Kori Madrasah in the Registan Square in Samarkand, the second largest city of Uzbekistan and the capital of Samarqand Province. It is an ancient city on the Silk Road and a melting port of the world's cultures. It was listed as a world heritage site by UNESCO in 2001. (Xinhua/Sadat)
