I only visit on the Equinoxes and Winter Solstice. It becomes a very different place when you are amongst the stones. Whenever I am there with all the tourists I feel exceptionally proud of it (almost smug!!) and delight in telling them details they are unaware of.
For me though it is the whole landscape that is exciting. All those monuments connected over a long period of time. Walking from Stonehenge to Woodhenge or along the avenue towards the stones at sunset on the Winter Solstice will never cease to delight me. It almost brings me to tears . . . very powerful . . .
Blingo_von_T