Historic Route 66 Corridor (Flagstaff)

Local businessmen lobbied hard to bring Route 66 through Flagstaff, and it worked — when the highway was completed in 1926, it shifted the city's economic engine from lumber to tourism. The downtown corridor it runs through today retains commercial architecture, neon signage, and motor-court lodges from that era. Every September, the city marks its connection to the Mother Road with Route 66 Days. The highway still passes through, still on the National Register. That's the whole argument for going.