The Dubrovnik City Walls are a series of fortifications that encircle the historic city of Dubrovnik, Croatia. Built between the 12th and 17th centuries, these walls were designed to protect the city from invasions and have a total length of about 2 kilometers. They are considered one of the best-preserved medieval fortification systems in the world. Visitors can walk along the walls, enjoying stunning views of the Adriatic Sea and the city's red-tiled roofs. The walls feature several towers and bastions, including the iconic Minceta Tower, which offers panoramic views of the surrounding area.