Thomas Hardy's 'Mayor of Casterbridge' has Maumbury Rings in it as a meeting place. 'Tess of the Durbervilles' has Stonehenge. I'm sure his other books, being based in 'Wessex' have other sites in them (but I haven't read any others)
William Mayne's 'Earthfasts' books have standing stones in them (but I don't think they're any real ones in particular). I don't know if you'd include him if you want classic 'literature' but he's a longstanding and respected children's author.