
PlaceGreen Valley
I-19, America's Only Metric Interstate
After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.
RoadsPolitics
Strange places, unforgettable stories, and road-trip ideas from licensed Atlas Obscura picks, all gathered into one bilingual guide.
A quick spatial view of the Arizona places currently in the Atlas set.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

America's only nuclear missile silo open to the public.