The Castelo de Penedono is a medieval castle located in the municipality of Penedono, Portugal. Built in the 12th century, it is a prominent example of military architecture from the period. The castle features a rectangular layout with robust stone walls and a central keep, offering stunning views of the surrounding landscape. The castle is classified as a National Monument and is an important part of Portugal's cultural heritage. It has undergone various restoration efforts to preserve its structure and history. Visitors can explore its towers and walls, gaining insight into the region's medieval past and the role of castles in defense.