The Château de Joux is a historic fortress located in the Jura Mountains of France. Built in the 11th century, it has served various purposes over the centuries, including a military stronghold and a prison. The castle's strategic position allowed it to control important trade routes between France and Switzerland. Today, the Château de Joux is a popular tourist attraction, offering visitors a glimpse into its rich history and stunning architecture. The site features well-preserved walls, towers, and a museum that showcases artifacts related to its past. Visitors can explore the grounds and enjoy panoramic views of the surrounding landscape.