© Licensed to London News Pictures. 01/12/2014. Wiltshire, UK. (L-R) Andrew Page-Dove, Regional Director of the Highways Agency, Simon Thurley (red scarf) Director of English Heritage, David Cameron and Dame Helen Ghosh, Director-General of the National Trust.  British Prime Minister David Cameron visits Stonehenge today 1st December 2014. A tunnel passing Stonehenge is among dozens of new road schemes announced by the government, as part of £15bn of improvements to England's roads. Photo credit : Stephen Simpson/LNP