Inside the beautifully restored Casa del Desierto, a 1911 Harvey House (architecturally significant railway inns named for their originator Fred Harvey), this museum documents life along the historic highway with some great historic photographs alongside eclectic relics, including a 1915 Ford Model T, gas station memorabilia and products made from locally mined minerals.
The excellent gift shop stocks Route 66 driving guides, maps and books. Note that the museum is entirely volunteer-run, so it's best to confirm opening hours.
