If it makes you feel any better, I was on a student ambassador trip to the UK and Ireland in the very early 2000’s. Stonehenge wasn’t on our itinerary, but we were traveling past and wanted to see it. Our local guides warned us that we might be disappointed, but we insisted. I won’t say it wasn’t worth it to see, but we were all pretty underwhelmed. It was still a neat and striking experience to see, but we were kept pretty far away from the stones. They were roped off in a field by the highway, and there wasn’t much in the way of historical exhibits to spend time enjoying.