A "🏰" is a symbol commonly used to represent a castle, which is a large fortified building or complex that historically served as a residence for nobility or royalty. Castles often feature thick walls, towers, and battlements, providing a defensive structure against potential attackers. They can be found in various architectural styles, ranging from medieval fortresses to grand palaces. Castles are known for their historical significance, architectural beauty, and the stories of knights, kings, and queens that surround them.