Did you know?
Diameter of Mercury (4,880 km) is 2.5 x Length of the Tigris River (1,950 km)
Tweet this comparison
Direct distance from Land's End to John o' Groats (970 km)
If this was a standard unit ...
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.