Stone Castle is a historic structure made primarily of stone, often characterized by its sturdy walls and fortified design. These castles were built during the Middle Ages for defense and as residences for nobility. They typically feature towers, battlements, and a central courtyard. Many Stone Castles are located in Europe, with notable examples in countries like England, France, and Germany. Over time, some have been restored and serve as tourist attractions, while others remain in ruins, offering a glimpse into medieval architecture and history.