Chongqing's "East Water Gate" and the city wall were built in the Ming Dynasty, a pass on the Yangtze River defense line in Chongqing, easy to guard and attack. There is a "Huguang Assembly Hall" nearby, which witness the history of "Huguang Guangfill Sichuan" in the late Ming and early Qing Dynasty. Above Dongshuimen is the famous Dongshuimen Bridge, and it is also a punch-in place for visiting the night view of the two rivers in Chongqing.