World at Work: London

By Bloomberg Photos - 2013-03-01T17:27:24Z

Photograph by Chris Ratcliffe/Bloomberg

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To Heathrow and Beyond

Crossrail Ltd., a subsidiary of Transport for London, began tunneling in May 2012, with engineers and construction workers since working 24 hours a day on what has become Europe's largest civil engineering project.

Left, an engineer drives a works locomotive through one of the new western tunnels, deep beneath London.