Culzean Castle is a magnificent castle located on a cliff overlooking the Firth of Clyde in South Ayrshire, on the west coast of Scotland, near Maybole and Carrick. It was once the residence of the Marquess of Ailsa, the head of Clan Kennedy, but is now under the ownership of the National Trust for Scotland. The castle is situated within the Culzean Castle Country Park and is accessible to the public. For more than four decades, from 1972 to 2015, an image of the castle was displayed on the back of five-pound notes circulated by the Royal Bank of Scotland.