Perhaps not in this case; I had heard of this water wheel but couldn't remember the details so I simply googled for 72-foot-6-inch wheel and the
Laxey Wheel (Lady Isabella) on the Isle of Man was the first hit, and most of the rest of your clue words were in the first paragraph of the Wikipedia entry, so I think this one was too easy.
The Alcatraz one was even more obvious, in that I didn't even need a Google search (and I'm guessing you didn't either).
It's tricky thinking up puzzles that can't be answered with an obvious Google search which is why I tend to let others have a go to save me having to think up a new one. I thought my last one (Nobel's "legal home" in Karlskoga) was topical but fairly obvious, and I was a bit surprised that it took a few days to solve.
Are you willing to have another go? If not, I may need some time to come up with one myself.