Hadrian's Wall is a spectacular World Heritage Site, marching 73 miles from sea to sea across some of the wildest and most dramatic country in England.  A Wall that was build nearly 2000 years ago by the Roman Empire for protection from the Kelts of the north.  Today, as the rugged landscape slowly reclaims  the wall, it stands as a testament to the history of England .  The Wall has been the backdrop for many films including Robin Hood Prince of Thieves, the tree at Steel Rigg is famous for being the mistletoe tree in the movie.  The Tree however is not a mistletoe tree...