Indeed, an inspiring list for any cycling enthusiast! I'd add the Going-to-the-Sun Road in Glacier National Park, Montana. The winding roads and breathtaking views are a challenge worth taking.
However, the post could benefit from more specific details on each ride, such as elevation gains, road conditions, and must-see attractions along the way. After all, informed cyclists are safer and happier cyclists.
As for other suggestions, I'd be thrilled to hear more about off-the-beaten-path destinations that offer unique cycling experiences.