WesBarton89 posted earlier about driving the Lynn Cove Viaduct, and it got me thinking...what are the best driving roads by state? I have not done enough travel myself to say I am an expert in this field, but the routes below I have personally driven on several occasions...I recommend you do as well.
Massachusetts: Route 119 Concord to NH 202/Mt Monadnock - This isn't a super exciting road to me because I grew up driving it, but it does offer some nice turns thru the forest, cool small towns, and some great views especially when you get close to Mt. Monadnock. (Side note, watch out for cops in the <40MPH zones) ~70mi round trip
Maine: Dover NH to Casco to Portland - Take 4 from Sanford ME up to 202 which will take you all the way up to Sebago Lake. From there take the 302 to Westbrook/Portland. While it's not the coastal Maine we all see on postcards, it is equally as scenic, and the inland roads are less crowded than the coastal route. ~90mi
New Hampshire: Mt Washington...heck, even the drive to Mt Washington is fun
Vermont: Route 4 White River Jct to Rutland - A nice ride thru the mountains of Vermont. Plenty of places to stop off for something to eat and some great photo ops. ~45mi
California: Hwy49 High Sierra Loop - Highway 49 will start out in the foothills in Grass Valley and climb through the Tahoe National Forest. Make sure you gas up when you can because there is not much around once you leave GV. The road has a ton of twists and turns...oh and about 3000Ft of elevation. Follow 49 all the way to 89, and then eventually to I80 in Truckee. ~140mi from GV to Truckee
Please feel free to add any of your favorite routes