Did you know? Height of Olympus Mons (Mars) (21.9 km) is 250 x Height of the Flatiron Building in New York (87 m)
Other land in Barbados (2018) (206.4 km^2)
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.