Running alongside the I-40 freeway for about 50 miles east of Barstow, old Route 66 survives as a sort of frontage road, passing little more than an occasional lava flow (like Pisgah Crater, where there’s a pair of I-40 rest areas).

About 25 miles east of Barstow is the place that for many people symbolizes the quirky personality of Route 66: Newberry Springs. The cult classic Percy Adlon movie Bagdad Café was shot at the town’s one and only café, now also known as the Bagdad Café (760/257-3101). Considering its connections with the oddly endearing movie (which features a cast of drifters, an obese German magician, and Jack Palance!), the real-life Bagdad Café is welcoming and appropriately weird, not so much a restaurant as it is a semi-catered film set. It stays in business as a pit stop for fans of offbeat European cinema who happen to find themselves in the middle of the Mojave Desert. Be sure to read and sign the guest book, which features heartfelt comments from hundreds of people who’ve made the trek here from all over the world; Scandinavians and Teutonic types seem especially well represented.

Between the Bagdad Café and Barstow, old Route 66 runs past the region’s other unique claim to fame: The semi-successful Solar One power plant, an experimental 10-megawatt electricity generating station north of I-40, was built in the 1980s and is now used as an astronomical gamma-ray observatory. If you like shiny cutting-edge technology, you may want to detour from Barstow to Las Vegas along I-15 to see the nearly 400-megawatt Ivanpah Solar Power Facility, one of the world’s largest solar thermal plants, which is clearly visible from the freeway.