MegaStructures - Season 7

It's one of the biggest construction projects in British engineering history. A new high-speed rail line costing several billion pounds and cutting through some of the most heavily developed land on the planet to complete a high speed link between two of Europe's major capitals: the Channel Tunnel between London and Paris. High Speed One's design and construction overcame unprecedented obstacles to achieve what many thought was impossible. Step aboard to explore the engineering behind this UK super train line.

Uncover how Abu Dhabi's extraordinary Aldar HQ skyscraper, in the form of a circle sitting on its edge, came to be built.

The Pearl River Tower is one of the first of a new generation of super smart buildings. It will use less than half the energy of a conventional skyscraper and will harvest the forces of nature to make energy of its own. With a curved facade that faces directly into the wind, the Pearl River Tower in China's Guangzhou City is shaped for performance. With a design specific to its environment, the Pearl River Tower utilizes a multitude of energy efficient technologies in one single structure, and symbolizes the future for super-tall building design.

The secrets behind Singapore's Marina Bay Sands development, which includes hotels, a museum, casino, waterfront promenade and theatres.

"I love what I do. I get to tear stuff up." Every day around the world, thousands of planes, trains, and automobiles get cut down to size for recycling. A jumbo jet costing a hundred million dollars becomes parts the size of beer cans in a matter of hours. An 18-ton steel rail car is attacked by some of the world's most expensive knives. And a fleet of automobiles dies a torturous death -the equivalent of an agonizing tooth extraction and an elaborate embalming ... all to process them for shredding and recycling. Finally, shredded metal is reborn as shiny new Land Rovers.

It's one of the biggest construction projects in British engineering history. A new high-speed rail line costing several billion pounds and cutting through some of the most heavily developed land on the planet to complete a high speed link between two of Europe's major capitals: the Channel Tunnel between London and Paris. High Speed One's design and construction overcame unprecedented obstacles to achieve what many thought was impossible. Step aboard to explore the engineering behind this UK super train line.

Uncover how Abu Dhabi's extraordinary Aldar HQ skyscraper, in the form of a circle sitting on its edge, came to be built.

Central to Dubai’s reputation as a leisure capital is: the Dubai Mall. With an indoor aquarium, ice rink, roller coaster and 1,200 shops, it must be completed by a nearly impossible deadline