[gleeaikin]

And more than twice as old as stonehenge.

[WL-law]

"And more than twice as old as stonehenge."

But what about Foamhenge, down in Natural Bridge in Rockbridge County VA?

http://www.roadsideamerica.com/story/9209

http://www.virginia.org/Listings/Museums/FoamhengeatNaturalBridge/