Extreme Engineering

Turning Torso not only aims to be the tallest building in Northern Europe, but it's designed to make a stunning, 90-degree turn before reaching it's final floor, 600 feet up.

A new wave of mega-sized container ships are now under construction and changing the shipping industry. These new ships are so massive they will require retrofitting of the world's cargo ports and canals.

The Oakland Bay Bridge is an earthquake-proof span that's the largest construction project in California history. The bridge will link San Francisco to Oakland, replacing the most heavily trafficked bridge in the US.

Engineers face the extreme challenge of carving a 45-mile tunnel in Iceland, at a dangerous site. The tunnel is part of a project to construct one of the world's largest dams, and the construction comes with enormous costs.

Open-pit mine crews work around the clock digging up iron ore to meet the global demand for steel production. To meet their demands, engineers have developed the fastest, most technologically advanced excavator ever built.