Some great examples have been listed here. 18 at CommonGround, yes! 4 and 6 at Town & Country, most definitely! 5 at Pete Dye GC might be the coolest... I love that the layup is blind, but the stronger player still gets tempted by the sight of a flagstick peeking over the river's edge.
I played another one over the weekend during my first away round of the year. As a former resident of Lexington, KY, I've missed the local municipal courses ever since I left town. Sorry Mike. I went down to see a few family members for a foam-lined round on Sunday, and revisited Tates Creek Golf Course for the first time in 12 years or so. It's a short old no-frills course designed by Buck Blankenship, who designed most of the short old no-frills courses in Kentucky.
Buck never moved much dirt and never appeared to have a budget to move it with even if he'd wanted to. But I cut my teeth playing his courses, and I've come to believe he had a good eye for routing holes using natural features to create interest. His greens and bunker schemes tend to be dull as hell, and he really loved 375-ish yard par 4s. But he's great at incorporating streams, ponds, and especially slopes to create tee-to-green interest.
The 3rd at Tates Creek is a very short par 5, maybe 470 yards or so at most. The tee shot plays downhill. Starting about 200 yards from the green, we head straight up. The player laying up needs to get well inside 100 yards for a clear view of the whole putting surface. The final 120 yards or so is basically a hog's back fairway with balls funneling away from center. The player who lays up to the 70 yard mark and dead center will have a much more comfortable approach than the player who's 110 yards out and funneled right off the fairway side slope, who can only see the top of the flag with the ball well below his feet.
Going at the green in two? A telephone pole behind the green shows the way, and you'd better hit it straight or you'll be funneled further from center. I finally know the feeling of hitting a good shot over the crest of the hill and toward the pole. It's thrilling! I probably played the course 40 times when I lived in Lexington, but I don't think I ever had an eagle putt there until Sunday. I missed it.
Neither here nor there, but the 4th is a pretty cool blind par 3 with just the top of the flag visible from the tee. Buck might not have been real creative with his greens, but you can't just dismiss him as a good player who sacrificed fun for fairness.