Culzean Castle is one of Robert Adam's masterpieces — a late 18th-century Gothic Revival castle perched on basalt cliffs above the Firth of Clyde, nine miles south of Ayr. The National Trust for Scotland owns and manages the property, including the 560-acre country park surrounding it. On clear days the views from the clifftop gardens extend to the mountains of Arran and, further south, the distinctive outline of Ailsa Craig.
The castle interior is open for tours, with the oval staircase and circular drawing room (both genuine Adam originals) among the highlights of 18th-century Scottish interior design. The country park offers miles of woodland and coastal walks, a walled garden, a swan pond, and a beach. The combination of outstanding architecture, magnificent setting, and well-maintained grounds makes Culzean one of the most enjoyable National Trust properties in Scotland. Expect large crowds in summer.