Wikipedia
Foamhenge
Foamhenge is a full-size replica of Stonehenge made entirely out of styrofoam in Natural Bridge, Virginia. The structure was created by Mark Cline of Enchanted Castle Studio in 2004, with the pieces in astronomically correct positions. Cline has described Foamhenge as his greatest achievement.
It has become a tourist attraction, scoring an average 4 out of 5 stars from 221 reviews on TripAdviser . By 2015, the foam structure had deteriorated markedly, to the point where some "stones" had split and were held in place with wooden supports.
Natural Bridge is becoming a state park and according to Enchanted Castle Studios they have got until 1 August 2016 to remove Foamhenge.