The city known for its historic walls is Dubrovnik in Croatia. Famous for its well-preserved medieval architecture, the city features formidable stone walls that were constructed in the 13th century. These walls surround the Old Town, a UNESCO World Heritage Site, protecting it against invasions and showcasing its rich history. Visitors can walk along the walls for panoramic views of the Adriatic Sea and the city’s stunning rooftops. Dubrovnik’s cultural heritage, combined with its beautiful coastal setting, makes it a must-visit destination in Europe.