I am looking for advice from any USican who has extensively visited the UK. I'm considering a driving tour for Cahmeren and myself and most likely we will land in Dublin, stay there for a day or two, drive to Belfast, spend the night, drive to Glasgow, spend a day, drive to Edinburgh, spend a day, drive to London, spend two days, drive to Cardiff, spend one or two days and then back to Dublin to fly home.
What I need from you are things that are awesome and not bars in the non-London cities and suggestions of awesome places to stay and cool castles.