You walk up to it - and you become a part of it. It is a very strange place indeed. Technically speaking, Stonehenge is a cluster of dolmens - dolmen being a Cornish word that means holestone, namely any large stone upended and fixed in a hole in the ground. There are dolmens of one sort or another all over southern England and much of Western Europe. For the most part these dolmens, wherever they occur, are oblong slabs of stone, one end of which is set in a hole.
All dolmens are related, perhaps through religion or magic, perhaps as the work of one people.
From the air, you would see it as a great circular dish about 100 yards in diameter. There is a break in the ditch where the entrance road crosses it, and there is a big stone, fallen and called the slaughter-stone, although in all probability no slaughter was ever done upon it. Once, it was part of the entrance, the gateway to whatever Stonehenge was. It is the inner circle of big stones that we think of when we say Stonehenge, and that is certainly the most dramatic part of the ancient ruin. This is called the Sarsen Circle, the stones that constitute it being of sarsen, a type of sandstone found on the Marlborough Downs, not very far to the north of Stonehenge.