Shasta Dam
Road-trippers traveling along I–5 often stop at the second-largest concrete dam in the United States—only Grand Coulee in Washington is bigger than Shasta Dam, completed in 1945. The visitor center's 20-minute film and exhibits explain the engineering and construction, but even if the facility isn't open, the photogenic view north to snowcapped Mt. Shasta makes the dam worth the detour. The landmark's history-laden guided tours were set to resume by 2024.
