Ready for a road trip? If you’re searching for scenic highways and byways, the Lincoln Highway is both.Stretching from New York City to San Francisco, 460 miles of the nation’s first transcontinental automobile road passes through 13 counties and 43 communities in Iowa. It basically follows Highway 30 from the Mississippi to the Missouri rivers, and offers motorists so many historic attractions that it was deemed a Heritage Byway in 2006.