River Road between New Orleans and Baton Rouge, LA A famous four-mile byway along the Mississippi River with sugar plantations and amazing architecture.
Scenic Byway 12, Going-to-the-Sun Road between West Glacier and St. Mary, MT A steep 52-mile tour starts in West Glacier and includes Lake McDonald, Avalanche Creek campground, Trail of the Cedars and a tight hairpin known as the Loop.
Route 340, or "Philadelphia Pike," from Greenland to Blackhorse, PA 53 miles that run through the heart of Pennsylvania Dutch Country, with roadside stands featuring friendship bread, apple crisp or shoo-fly pie. And watch for horse-drawn buggies!
The Cascade Loop, U.S. Route 2 between Everett and Leavenworth, WA 100 miles beginning at the edge of Seattle and meander through small Victorian-era towns before climbing steeply into the Cascade Mountains peaks at more than 7,000 feet. Other possible stops include Skykomish, where the transcontinental railroad was completed and Deception Falls.
California State Route 254 between Phillipsville and Pepperwood 31 miles that more or less parallel US 101, with views of ancient redwoods soaring from the alluvial flats of the Eel River and 100 miles of hiking trails.