-
E1 Moving Mountains
A rescue tunnel is needed to free one of the world's largest machines stuck in the world's longest tunnel in the Swiss Alps.
-
E2 Roller Coaster
Following the construction of the longest, fastest and tallest roller coaster, the Tatsu, located at the Six Flags Magic Mountain in Valencia, California.
-
E3 Madrids Big Dig
Under a sweltering sun in the heart of Madrid, Spanish construction workers are working non-stop on the largest highway project in the world.
-
E4 Sinking Wings
For 15 years, Canadian diving enthusiasts have been trying to turn the coastal waters off southern British Columbia into the wreck-diving capital.
-
E5 Bangkok Bridge
A look at the complex construction of the new 13km double span bridge in Bangkok, Thailand.
-
E6 Crossing the Colorado
In a rugged canyon, down river from the Hoover Dam, a team of construction veterans is building the biggest concrete-arch bridge on the continent.
-
E7 Extreme Elevation
As the awesome mega-project goes under the hammer, a look at how the Burj Dubai in the United Arab Emirates is set to become the tallest building on Earth.