Chinese Ambassador to Turkey Gong Xiaosheng (1st L), Turkish Transportation Minister Binali Yildirim (2nd L) and other guests cut the ribbon for Chinese Silk Exhibition at the International Silkroad Congress in Istanbul, Turkey, Oct. 28, 2013. International Silkroad Congress was held in Istanbul on Monday with the topic "Rethinking the region of peace, collaboration and trade between the east and west". Chinese silk exhibition was also held during the congress. (Xinhua/Lu Zhe)