Burleigh Castle, Perth & Kinross, Scotland
Burleigh is a 15th century castle. The grounds are a open at daylight times. There is a sign on the door of the south west tower which tells you where to find the keys for getting access to the towers.
The north tower was built by the Balfour family, and later the southwest with its unusual shape was supplemented. It is a little bit tricky to park the car safely, because the curve is turnig right around the castle wall.