
Tunneling Under the Alps
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.
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More from this season

S1 E1
Tokyo's Sky City
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.

S1 E2
Subways in America
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.

S1 E3
Transatlantic Tunnel
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.

S1 E4
City in a Pyramid
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.