Ancient castles are large, fortified buildings that were built during the Middle Ages. They served as homes for nobles and kings, providing protection against enemies. Many castles have tall walls, towers, and moats, making them difficult to attack. Some famous examples include Neuschwanstein Castle in Germany and Edinburgh Castle in Scotland. These castles often feature beautiful architecture and intricate designs. Inside, you can find grand halls, secret passageways, and even dungeons. Today, many ancient castles are popular tourist attractions, allowing visitors to explore their rich history and imagine what life was like for the people who lived there.