When I was over there last year, we tried to shoehorn Stonehenge into our plant since we would be driving past in on the way to Bath. I heard from plenty of people that it’s almost not worth it unless you’re just really interested in its specific history. I was told it gets crowded pretty quickly (lots of tourists groups), and you can’t get very close to it anymore. We dropped it and saw it from the motorway on the way to Bath.