20 Awesome Destinations for a Perfect U.S. Trip
Historic Route 66 and Beyond
Although I-40 replaced much of the original Mother Road, the 170-mile Toprock to Ash Fork stretch is intact. Alternate between I-40 and Route 66 for a retro road trip. Bonus: Hike the Wave near the Utah border. Plan ahead, as only 20 people per day can visit.
Photograph by Richard Barnes, National Geographic Creative