The gardens of Drummond Castle, first laid out in the early 17th century by John Drummond, second earl of Perth, are among the finest formal gardens in Europe. There's a panoramic view from the upper terrace, overlooking an example of an early Victorian parterre in the form of St. Andrew's Cross. The multifaceted sundial by John Mylne, master mason to Charles I, has been the centerpiece since 1630.