Well, it will cost a grown-up £26.50 to get into Windsor Castle, more if you go at the weekend. We're very good at ripping people off here so be warned. It will cost you at least £32.50 to go to the Eden Project. To go to the Roman baths in Bath will cost you £24.50 and you can do it in 45 minutes. Stonehenge will cost you £21-ish plus extra to park your car. There's a legal way to see it fairly upclose for free but do your research. Whatever you do you won't be getting in among those stones (as I did in my teens). Not unless you join the hippy hordes on the summer solstice.

In contrast, you can visit both Pompei and Herculaneum for €28 total. If you go there you will come away thinking you've had one of the best experiences of your life. You will not be thinking that about Windsor Castle, the Eden Project or the Roman baths. Not even Stonehenge, now that you can't touch those wonderful stones. You pays yer money...