I worked on huge construction jobs while I was going to college, so not too much surprises me.
Ah, so. I've pretty much just watched; I did some work at a big hydro power plant in New Hampshire as a consultant back around 1990; that was cool.
The last trip I took driving south from NY to NJ on 81/PATP I saw a new set of big wind gennys in the Wilkes Barre area, strung out along one of the big ridges. Turning slowly... beautiful things. Being an alt-energy freak, I was delighted, and as an engineer I was intrigued. Naturally we took an unscheduled side trip to find out what they looked like up close... my wife's got some pictures I'll copy and post someday on a similar thread.