Oldest buildings in Scotland

Scotland has some of the oldest buildings in the world. Many of them are castles that were built hundreds of years ago to protect people from enemies. Some of the oldest buildings in Scotland include Edinburgh Castle (built in the 12th century), Stirling Castle (built in the 16th century), and Eilean Donan Castle (built in the 13th century). All of them are still standing today and can be visited by tourists.