Château de Peyrepertuse is a historic fortress located in the Aude department of France. Built in the 11th century, it is perched on a rocky outcrop in the Corbières mountain range, offering stunning views of the surrounding landscape. The castle played a significant role during the Cathar Wars and served as a strategic military stronghold. The fortress is known for its impressive architecture, featuring a series of walls, towers, and a keep. Visitors can explore its ruins and learn about its history, making it a popular destination for tourists interested in medieval architecture and French history.