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Circumference of Neptune (154,600 km) is 20 x Length of coast-to-coast American Discovery Trail (Northern Route) (7,780 km)
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Land Area of Laos (236,800 km^2)
If this was a standard unit ...
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.