Extreme Engineering covers major construction projects from all around the world. Some are futuristic projects that may never be done, others are projects that are on there way to completion.
Tokyo's Sky City
Subways in America
Transatlantic Tunnel
City in a Pyramid
Bridging the Bering Strait
Tunneling Under the Alps
Building Hong Kong's Airport
Holland's Barriers to the Sea
Boston's Big Dig
Widening the Panama Canal