Lindoso Castle was built during the reign of King Afonso III around 1250 as a result of a defensive policy in the border areas, and was expanded during the reign of Dom Dinis. This castle is located 4800 meters from the border with Spain. It played A very important role in the "Portuguese Restoration" campaigns, a small square castle with rounded corners and two square towers, whose medieval architecture has been preserved as it is to this day, has been designated a National Monument since 1910.