Check out the WW1 tunnel map...
That's incredible. I wonder if there's any traces on the ground? The frontline areas seem to have a small town on top of them now unfortunately.
Full story here... http://www.bbc.co.uk/news/uk-england-beds-bucks-herts-30967231
That's incredible. I wonder if there's any traces on the ground? The frontline areas seem to have a small town on top of them now unfortunately.
Full story here... http://www.bbc.co.uk/news/uk-england-beds-bucks-herts-30967231