Two Identical Serpentine Celtic Henges in Germany and Newark, Ohio.
The large Henge at the Newark works also has a henge with a serpentine gateway. Do you think this is serendipity? The logical conclusion in that it was the same people that built both of these sites. More henges linked to Europe www.nephilimgiants.net : Ancient Henge (Sun Temple) Discovered in Germany with Links to the Ohio Valley