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S1 E4
9/1/04
Iceland Tunnels
Engineers face the extreme challenge of carving a 45-mile tunnel in Iceland, at a remote and dangerous site. The tunnel is part of a massive project to construct one of the world's largest dams, and the construction comes with enormous costs.
Seasons
Episode
1
Turning Torso
Episode
2
Venice Flood Gates
Episode
3
Container Ships
Episode
4
Oakland Bay Bridge
Episode
5
Iceland Tunnels
Episode
6
Off-Shore Oil Platforms
Episode
7
Cooper River Bridge
Episode
8
Milau Viaduct
Episode
9