All I know is that standing and looking at Stonehenge fills one with awe. The time I was there, there were several tour busses unloading people, and no one said a word. It was eerily quiet.
I agree. My wife and I were saying the same thing just yesterday. There's something mystical about the monument, the Salisbury Plain, the Avenue that leads to the River Avon, etc. despite the monument being hemmed in by two busy highways. Did you also visit Avebury which is nearby?