Carcassonne Fortress is a medieval fortified city located in the Aude department of France. It is renowned for its well-preserved walls and towers, which date back to the Gallo-Roman period. The fortress features a double line of ramparts and 53 towers, making it a remarkable example of medieval military architecture. In 1997, it was designated a UNESCO World Heritage Site. The fortress is home to the Basilica of Saint-Nazaire, a stunning example of Gothic architecture, and the Château Comtal, a castle that offers insights into the history of the region. Visitors can explore its narrow streets, shops, and restaurants, immersing themselves in the rich history of Carcassonne.