Introduction to the Minghuang City Dong'anmen Ruins: The Minghuang City Dong'anmen Ruins are located on both sides of Dong'anmen Street in the park. In 2000, during the second phase of Wangfujing Street construction, many ruins of the Mingdong Imperial City Wall were discovered. Among them, two sections of remnant walls in the east-west direction were found. There was a gate accompanying the wall on the site. The approach bridge of Huangen Bridge and the ruins of the original road of Dong'anmen were discovered. These physical objects provide a basis for determining the exact location of the imperial city. Through excavation, the original objects are protected for tourists to visit.