"Dong's Ancestral Hall" was built for Dong He, the founding ancestor of the Liukeng Dong family. The full name of the ancestral hall is "The Great Ancestral Hall of the Great Situ Donggong Donated by the Song Dynasty". The ancestral hall was built by the Dong family in Liukeng. From the site and composition, it can be seen that its scene is broad, its structure is grand, and it is elegant and spectacular. The genealogy describes the great ancestral hall as follows: "Biaofang and Tandao, heavy gates and wings, secluded rooms and lofty halls, stacked storehouses, Suzhaijinglu, around the walls and rope lanes, all of which are incomparable." It can be said that Liukeng ancient The most built is enough to reflect the glory of the Dong family in the past. But it is a pity that in the 16th year of the Republic of China (1927), the Great Ancestral Hall was burned down by Xing Yutang soldiers, the remnants of Sun Chuanfang, a Beiyang warlord. Its main building is now only a fragment of ruins. The five remaining granite pillars with a diameter of 0.7 meters and a height of 8 meters on the "Dunmu Hall" stand majestically and look up to the sky, seeming to tell its past glory and injustice. Later generations called the ruins of the Great Ancestral Hall the "Yuanmingyuan" of Liukeng.