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Building Giants: Underground Mega Road
Underground Mega Road
Season 3  |  Episode 2  |  7Mate  |  February 6, 2021

Beneath the rugged islands of Stockholm, engineers and teams of specialists blast through 18km of solid Scandinavian granite to create one of the world's longest road tunnels.

Beneath the rugged islands of Stockholm, engineers and teams of specialists blast through 18km of solid Scandinavian granite to create one of the world's longest road tunnels.

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