Core Insights - The article highlights the historical and cultural significance of the Haimen City Wall, also known as "Weicheng Yiyun," which has become a cultural landmark that bridges ancient and modern times [1][2] Group 1: Historical Significance - The Haimen City Wall, established in 1387, is a prime example of ancient coastal defense engineering, strategically located to oversee the confluence of the Jiao River and the sea [1] - The wall originally featured five gates and five rivers, serving both defensive and drainage purposes, with the remaining Yanqing Gate being the sole witness to this history [1] Group 2: Cultural Heritage - The site has transformed into a popular destination for both locals and tourists, with activities such as morning exercises and photography becoming common [1] - The East Mountain area, where the wall is located, is known for its scenic spots and has been restored to showcase military elements, reflecting the wisdom of ancient city construction [1] Group 3: Economic and Social Impact - Historically, Haimen served as a commercial hub, referred to as "Little Shanghai" during the Qing Dynasty due to its bustling port [2] - The restoration of Haimen Old Street has created a cultural district that blends Ming and Qing architecture with modern leisure, earning recognition from UNESCO for cultural heritage preservation [2] Group 4: Cultural Continuity - The enduring legacy of the anti-Japanese spirit and the historical significance of the city wall continue to resonate in contemporary culture, as seen in local customs and collective memories [2] - The integration of cultural heritage into modern life is emphasized, with activities like wearing traditional Hanfu and the recitation of folk songs reinforcing cultural identity [2]