This app was mentioned in 2 comments, with an average of 4.50 upvotes
> I often drive around in my car and see potential spots
Check out the Porsche driving app on the Play Store/App Store. There's some great user submitted roads on there and these roads typically take you around scenic areas.
edit:
App link: https://play.google.com/store/apps/details?id=com.porsche.gtsroutes&hl=en or https://itunes.apple.com/us/app/porsche-gts-routes/id838200762?mt=8
There is an android app by Porsche that uses GPS and accelerometers to rate good driving roads. It has a few bugs but the idea is a great one.
https://play.google.com/store/apps/details?id=com.porsche.gtsroutes&hl=en