From sea to shining sea, how long would it take you to hit a major landmark in all 48 contiguous states?
Nine days or so, traffic permitting.
You may have seen data scientist Randy Olson's optimal U.S. road trip map that went viral in March, but in honor of Memorial Day — and the start of the summer driving season — Business Insider spiced up the map in video form.
Check out the landmarks and routes for the science-backed road trip below:
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