Building Giants Season 4 Episode 3
Episode Title: Underground Mega Highway
Genre:
Documentary
Countries:
,
Airing Date: May 20, 2020
Runtime:60 mins
IMDb Rating:
Watch Building Giants Season 4 Episode 3 full movie online free in HD with English subtitles – no download needed.
An expert team of engineers use hi-tech explosions and state-of-the-art drilling rigs to tear through solid granite and build an 11-mile underground tunnel, one of the longest in the world.
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