Bethpage Black is practically a case study in Diagonal landing areas. I love that you have to consider more than just "how far left or right can I go", but also control your overall distances depending on the line chosen.
#5 - One of the best Par 4s in the World, with the reward for challenging the diagonal is clear on the second shot. Playing safe left forces you to pull off a long draw on your second.
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#4 - Angle comes into play on the Tee Shot, as well as the 2nd
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#2 - Really need to shape the ball to take advantage of the angle here. Many missed Draw Attempts leave either a hanging lie or punch out of trees:
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#13 - If you want to get home in two, you need to play the angle down the right side - Long and Straight just puts you in the left rough.
From tee:
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A little further up the fairway:
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There are others like #6, #7, #9, and #12, (and 15-16 to a lesser extent) but I don't have any good pictures to illustrate. I'm sure many in the Met Area could fill us in some more.
One of the unfortunate by-products of the "length obsession" is that the effects of these diagonal landing areas are reduced. By moving tees back 40-60 yards, the possibility of driving "through" the landing area is almost removed, eliminating the need to shape your shot or challenge the insides of the angles.