Extreme Engineering

Build the tallest skyscraper in Northern Europe? Only hope they're up to the challenge. And there's a catch: this twisted nightmare of a structure has to complete a 90-degree turn before reaching its final floor, 600 feet up.

Find out what measures are required of Venetians as experts attempt to keep the world's most beautiful city from going underwater.

New cargo vessels are changing the industry. Shipbuilders are making them so huge, they require the re-dredging and retrofitting of the world's cargo ports and canals.

The Eastern Highland, a vast plateau 100 miles south of the Artic Circle, is the site of a bold challenge of extreme engineering. World-class tunnel diggers are carving more than 45 miles of tunnels through solid rock hundreds of feet underground.

The New Bay Bridge is the biggest construction project in California history. This two-mile, earthquake-proof road will replace the most heavily trafficked bridge in the country-the span linking San Francisco to Oakland and the East Bay.

Charleston, South Carolina, is the construction site of the longest cable-stay bridge in America. Its signature 500-foot, diamond-shaped towers and ribbon-thin, eight-lane road surface will ensure its place among the world's most stunning structures.

In a remote corner of France, traffic between the south of France and Paris and the north have run into huge bottlenecks. Designers and engineers are working to open the region by building a bridge to leap across the 1.3-mile wide gorge.

At the world's largest open pit iron mine, a $10 million new, custom-built super shovel is commissioned to meet a sudden worldwide surge in the demand for iron. Will miners find success with the fastest, most technologically advanced excavator ever made?

America runs on oil. One-third of that oil gets pumped from wells drilled in the Gulf of Mexico. Follow the dangerous construction of the real workhorses of America's offshore drilling industry- the massive and mobile contraptions known as jack-up rigs