Powerhouse Visitor Center & Arizona Route 66 Museum

Kingman's Route 66 hub, set inside a 1907 power plant said to be the oldest reinforced-concrete industrial building in Arizona. The ground floor is a free visitor center and gift shop; upstairs, the Arizona Route 66 Museum (separate admission) traces the Mother Road through dioramas, vintage vehicles and a recreated 1950s diner and service station. A combo ticket also covers the Mohave Museum and the historic Bonelli House. Free parking with room for RVs, plus Tesla Superchargers on site.