Mega Builders

Moving Mountains (Gotthard Tunnel) (2x1)

Air date: Oct 30, 2006

With a price tag of 6 Billion American Dollars, The Gotthard Base Tunnel, between Lucerne and Milan, is a mega project by any standard. With 3,000 meter-high mountains in their path, the geology under the Alps remains unknown, no matter how much exploration is done it can present surprises right up to the last minute.