Blue Ridge Parkway (Virginia to North Carolina)

Connecting Shenandoah to Great Smoky Mountains over 469 miles, the Blue Ridge Parkway is America's most scenic mountain drive, with a mandated 45 mph speed limit that forces appreciation. Fall foliage peaks at milepost 431's Waterrock Knob, where a 360-degree panorama reveals 1.2 million acres of national forest. Over 60% of visitors come in October, but summer offers 75-degree temperatures and fewer crowds. The Cherokee considered these mountains sacred, and the data supports awe: elevation changes exceed 3,000 feet across the route, delivering more ecological zones per mile than #4's Glacier Park drive. It's 30% cheaper than the average road trip due to free entry.