I'll offer the following that I have seen:
Hard: 16 at Palmetto. Around 215 to a miniature, shallow green.
Hard: 11 at The Old Course, especially hard if you lay the sod over it and wind up in the Shell bunker
Hard: 4 at Augusta Nat'l, straight forward but with a severe green at high speed.
Long: 13 at Mission Inn-el Campion. Around 245, uphill, probably up to 265 with a back hole location.
Long: 18 (or is it 17) at East Lake. About 240 (which Vijay knocks stiff with a 4 iron)
Unique:
8 at Royal Troon,
10 at Pine Valley (unique if you don't count all of Fazio's copies),
5 at Palmetto, about 135 to a plateau green notched into the side of a steep slope-right is dead, left in the bunker fearing going long to the right.
Historic: 12 at Augusta National. Many dramatic moents in golf history here.
17 at Pebble- ditto
Scenic and Great: #? (maybe 14) at Broadmoor West. A back drop of the eastern slope of the rockies that is breathtaking, downhill about 170 with a drainage area crossing in front. You have to see this one.