His political ideas are from 'the Stone Age'. [=are from the distant past; are very out of date]
Their lawyer said that he would 'leave no stone unturned' in trying to find more evidence.
The researchers 'left no stone unturned' in their search for the original documents.
(..) are Last Hearth and Karhold. The Umbers and the Karstarks betrayed the North. Their castles should be torn down with not a stone left standing. The castles committed no crimes. And we need every fortress we have for the war to come. We should give the Last Hearth and Karhold to new families, (..)2017 TvShow: Game of Thrones Title: Dragonstone Season: 7 Episode 1