Chillon Castle (Château de Chillon)

Chillon Castle, a medieval fortress perched on the banks of Lake Geneva in Montreux, Switzerland, has a rich and varied history. Originally a defensive outpost, it later served as a summer residence for the dukes of Savoy and even functioned as a state-run prison. Visitors can explore its well-preserved architecture and learn about the castle’s multifaceted past, making it one of Switzerland’s most visited attractions.