Dirty Great Machines Season 1 Episode 1 Titans of Tunnelling 2012
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In this first episode, in London a tunnel boring machine faces immense challenges as it takes on Britain's deepest ever tunnel. Meanwhile in Mexico, a giant mechanical worm makes the earth move just metres beneath the city's soaring skyscrapers.
- Released: 2012-04-27
- Runtime: 60 minutes
- Genre: Documentary
- Stars:
- Director: