What a neat question.
It's remarkable (and rather touching) that -- in an era of the 24 hour cable golf station and tens of thousands of social-media sites producing millions of golf-related images and promotional videos -- more golf holes *haven't* become iconic, at least not quite yet. No doubt, some of them will, but only over more time -- and for my temperament I find it strangely comforting that, even today, nothing replaces "Time" as a factor in developing a deep and true appreciation, and in personal meaning-making.