I heard a song on a classic rock station at work that I can't figure out who its by. The song is long, I would say at least 6 min and there are no words except for the chorus. It's got a lot of uptempo guitar and the chorus mellows out. I don't know the exact words of the chorus but it talks about Kings, Castles, and Sands. My description is not the best but any help would be great.