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Megaconstrucciones - Season 1 Episode 6 Episodio 6
A tunnel over 35 miles long is to be dug under the Swiss Alps to redirect Europe's traffic. This $7 billion project will take 6 years to complete with man and machine fighting the mountains 24/7.
- Año: 2011
- País: United States of America
- Género: Documentary
- Estudio: Discovery
- Palabra clave: engineering
- Director:
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