Extreme Engineering

It examines the concept of constructing a giant tower in Japan that wouldn't be a just a building, but a public city in the sky. At the end it talks about what a fire in the building would be like and how the fire department would handle it.

This episode explores the current New York City subway and the plans for renovation. Also the World Trade Center Station post 9/11 and its hasty repair.

The concept of building a tunnel across the Atlantic Ocean is talked about. It talks about the problems involved, and how it might someday be possible. At the end it examines the concept of a submarine hitting the tunnel, and how hopefully this wouldn't ruin it.

This episode features Shimizu's Pyramid City, which would include dozens of 100-story skyscrapers with more than a million workers as part of a giant pyramid on the sea to provide more living space in Japan. Concepts such as construction robots, electricity issues, and building materials are examined. The pyramid could withstand a tidal wave, and perhaps protect the city as well.

A tunnel over 35 miles long is to be dug under the Swiss Alps to redirect Europe's traffic. This $7 billion project will take 6 years to complete with man and machine fighting the mountains 24/7.

Hong Kong has outgrown its small airport and quickly needed a new one in order to maintain its high traffic flow. The only place to put this new world class airport... 16 miles out in the ocean. This would require 22 miles of new super highway. It was predicted to take decades, but engineers were only given 7 years to build it.

Dutch engineers must overcome rising waters in the North Sea to protect their land.

Boston's new transport system, which features a multi-lane underground highway and the world's widest cable-stayed bridge

A documentary looking at plans to update the Panama Canal. This magnificent waterway cuts through 50 miles of tropical jungle, allowing ships to travel easily from the Atlantic to the Pacific. However, time has passed this engineering marvel by - many modern supercargo ships are three times the size the canal can safely accommodate, so plans are in motion to widen the structure. The project faces all manner of environmental challenges, as well as leaving the canal closed to…