For Eric the alien, and a lot of humans and felines besides, there is nothing at all more peaceful than to picnic at a cemetery, which is one of Stonehenge’s assumed reasons for existing. Being a cemetery, and then being a picnic spot. Also, it’s a great place to rest on your way to Avebury, infinity, and beyond, although I’ve heard that getting a park is difficult from time to time.
If you go, enjoy the greenery, the greyery, and the gruesome knowledge that human sacrifice was a thing even and especially thousands of years ago. Say hello to Eric for me.
Those Neoliths, gotta love ’em.