Looks pretty impressive and to think some people say tunnelling is boring! It is and it isn't. :) In other news, Crossrail finished tunnelling today. Not as lo

Looks pretty impressive and to think some people say tunnelling is boring! It is and it isn't. :) In other news, Crossrail finished tunnelling today. Not as long as this but still a big project. http://www.crossrail.co.uk/news/articles/prime-minister-and-mayor-of-london-celebrate-completion-of-crossrails-tunnelling-marathon http://www.crossrail.co.uk/news/articles/prime-minister-and-...