> Another thought is that they are like either Trilithons (the
> uprights-and-crosspieces of stonehenge), or dolmen/cromlechs (a
> capstone balanced on three or four stones like Kit's Coty).
A couple of sites that seem to have plenty of images of such ancient structures are
http://users.bart.nl/~jbmeijer/hpiceng.htm http://www.stonepages.com/home.html
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