Thinking of taking DC (aged 9 and 10) away for a few days in the summer (in the UK). We went to York during half term and loved it, so ideally somewhere similar. As a family we tend to like city type places to explore, especially if there are some historic places to see. We are in the south east but happy to drive up to about 3 hrs. Please give me some inspiration for your favourite places to visit with kids. 