isengard

No not Isengard from the Lord of the Rings, but the Wallace Monument at a hill-top near Stirling, Scotland. It commemorates Sir William Wallace, the 13th century Scottish hero, who defeated the English in the Battle of Stirling  Bridge in the First War of Scottish Independence. All the way back in 1297. Well, I have a pretty good idea what inspired J.R.R.Tolkien.