other than sheer immensity, did you know that Stonhenge is not entirely unique? There are numerous stone circles to be found throughout the country. Imagine the old testament wilderness; there must have been a lot of piled stone scattered throughout the land

and a few great temples

And one lamb out of the flock, out of two hundred, out of the fat pastures of Israel; for a meat offering, and for a burnt offering, and for peace offerings, to make reconciliation for them, saith the Lord GOD.

Aside from the symbolic significance or holiness of making an offering to the Lord, the physical act of building an altar seems unparalleled in anything we do today