China News Service, Guangzhou, May 29 (Cheng Jingwei, Li Xi) A photo exhibition of Sun Yat-sen’s cultural relics and treasures collected by Soong Ching Ling, jointly organized by the Sun Yat-sen Generalissimo’s Mansion Memorial Hall and Soong Ching Ling’s Former Residence Management Center, opened on the 29th at the Sun Yat-sen Generalissimo’s Mansion Memorial Hall in Guangzhou. 展览将持续至7月29日。