A couple from the Pacific Northwest:
#1 - Golf Club at Newcastle - dramatic backdrop comprised of miles and miles of the Seattle area, including Lake Washington, Bellevue Skyline, Seattle Skyline, Puget Sound, and Olympic Mountains.
#6 - Desert Canyon - central Washington high-desert - huge downhill par-5, some 650+ yds from the back tees. The backdrop, scale of the entire scene, and cliffside setting above the river are hard to describe.
Both are long downhill par-5's - where it's fun to follow the ball flight, for what seems a VERY long time...