Archway of Glazed Pagoda in Great Bao'en Temple; Great Universal Geographic Map; Paintings on Bricks of Tombs. Qin Hailu, Pan Guping, Zhang Chenguang, Gao Jun, Yuan Hong, Geng Shuo, Gao Mengshen and Students and Teachers of Daishan Experimental Primary School played roles of national treasure keepers. Qin Hailu and Pan Guping, presented the historical background of the Archway of Glazed Pagoda in Great Bao'en Temple. Zhang Chenguang and Gao Jun, presented the historical background of Great Universal Geographic Map. Yuan Hong, Geng Shuo and Students and Teachers of Daishan Experimental Primary School, presented the historical background of the Paintings on Bricks of Tombs. (Source: Wikipedia)