Dirty Great Machines S1E1: Titans of Tunneling

Aired: 2015-08-03
Time: 22:00:00
Runtime: 60 minutes

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Overview

Documentary series revealing the demon diggers burrowing below our cities. 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.

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