A Crossrail worker films as he peers from the operator's cabin of the thousand tonne tunneling machine, named after Britain's Queen Victoria, after it broke through to complete this section of tunnel, some 35 meters underground at Whitechapel, in London, Friday, April 4, 2014. The breakthrough marks the completion of some 19 miles of tunnels, out of the 26 total, needed to complete the construction of Crossrail's train tunnels. The tunneling machine with a 7.1m diameter cutterhead is being used for the massive Crossrail project which will link many parts of the London transport network to cut journey times and alleviate congestion, with a scheduled completion in five years.
Lefteris Pitarakis Associated Press