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.
Availability for the US. Data from JustWatch.
The Jumbo Jet: 50 Years in the Sky
1000 Days of Fear: The Deadly Race at Los Alamos
Brits Who Made The Modern World
Time Scanners
How to Build
MythBusters