Drive across the US and hit all major landmarks efficiently

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 When you have 2-3 months to spare, a Michigan State University student developed an optimal route to drive all across the US and hit 50 major landmarks in the 48 contiguous states (two in California and one in D.C.). sauce: http://news.discovery.com/tech/gear-and-gadgets/how-to-really-drive-across-the-us-hitting-all-major-landmarks-150309.htm