btw, there is a Stonehenge replica about a hundred miles from where I live in Portland, I visit it occasionally--its very cool and only a couple of miles from a very nice museum, too.
http://squirl1.blogspot.com/2005/07/foamhenge-in-nunica.html
http://www.weirdmichigan.com/folkart.html
http://www.roadsideamerica.com/set/OVERhenges.html