Thanks All! I appreciate the variety of sources cited so we can begin identifying dream trips/locations. One additional question about scenic by-ways: Are there ones that you would advise leaving the fifth wheel in the campground, whether due to the route itself, or lack of available space to pull off to enjoy the scenery?? And, the opposite - which ones have you driven that are great for use as ways to get to new places?
For example: I love the Beartooth highway, and Going-To-The-Sun road. But on neither would I ever pull a fifth (which might be banned, anyway....)
On the other hand, the North Shore Scenic by-way here in Minn. is great for camp-here, drive a bit and camp there, type travel.