Did you know?
Length of I-90 highway from Boston to Seattle (4,860 km) is 2.5 x Length of the Tigris River (1,950 km)
Tweet this comparison
Pop. of San Marino (33,800)
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.