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Height of Mons Huygens (highest point on the moon) (5.5 km) is 40 x Height of St Peter's Basilica in Rome (136.6 m)
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Land used for agriculture in Bahrain (2014) (85.9 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.