Airports
I second McGehee's Catfish Restaurant in Marietta, Oklahoma. They raise their own fish in a pond. Perfectly prepared and melts in your mouth. Wonderful. Get the all-you-can-eat deal with the hushpuppies.
I second Sedona, Arizona. Picturesque is an understatement. It indeed looks like paradise. Interesting airport; it is atop a mesa and makes me think of landing on an aircraft carrier. Be very careful of traffic because landings and departures are in opposite directions.
You can then fly over or around the mountain and stop in Prescott. If you fly over the mountain (I believe it is Mingus Mountain) you'll fly over Jerome, Arizona. You can have a meal at Nancy's Restaurant. That was the name eleven years ago; I dunno if the name changed. At any rate, good food, reasonably priced. Watch out for the Riddle stealth planes.
Ada, Oklahoma. The airport is nondescript but within walking distance is Bob's BBQ. What wonderful food. Wonderful ribs, and I was told it was even better before I tried it. Very easy flatland flight from OKC or OUN, for you Airmen guys/gals.
Getting honorable mention is Farmington, New Mexico. Not my favorite city in the world, but some of the scenery, such as Shiprock, is nice. I've heard that Cortez is nice, but I don't recall making it there. The airport is another sort of aircraft carrier. It has a non-federal tower, and I remember the controller in '93 was kind of surly. The Mexican restaurant is not bad. You may have to contend with MAPD airplanes, but not like the way Prescott attracts Riddle airplanes like bees to honey. Go north, and you can stop in Durango, which is an alright airport.
Pueblo, Colorado. It has a huge east-west runway, maybe 10,000 ft-plus. Going there just to watch traffic used to be fun. You'd see a mix of military traffic from Ft. Carson. I recall seeing either a United or old Frontier 737 doing touch-and-goes. It had an outdoor military aircraft museum. I don't remember all the aircraft on display. It may have had a B-47. It had a Fairchild C-119 that was nearly intact.
Finally, I'll toss in a plug for Vero and its environs. Flying along the beach is great, but as you approach Melbourne check your sectional closely and be aware of the KSC restricted area. You can actually see the Shuttle launch pad. I never did this, but I've heard of people who timed a flight for a shuttle launch and were in the air at the time. Of course, they shut down the airspace massively during that time, so I don't know how much benefit you get by trying to watch a Shuttle launch while airborne. Vero has a nice restaurant, C.J. Cannon's. It used to have nice specials on Sundays.
Happy flying!