Did you know?
Number of rivets in the Eiffel Tower (2.5million ) is 4 x Number of active personnel in the South Korean Armed Forces (630,000 )
Tweet this comparison
Length of the St Lawrence Seaway Canal system (600 km)
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.