The amount of information this one gives blows one out of the complacent cocoon of usually taught and assumed history, which hides and denies much of what is known and insists on much of established theories that are in fact completely cuckoo. This one is about European explorations of western and southern continents, and how the normal assumptions are as far from reality as can be.
One reads about the destruction wreaked on on the South American priceless heritage, and one wishes the idiots who did it in their arrogance and assumption of superiority had perished before they landed.
And there is the map that zaps, throwing out all sorts of assumptions underlying history as it is given today. Not a bad thing either - for that sort of mistaken nature of teaching might be also about more, much more of history as it is given out today, and a lot more might be thrown out as knowledge improves.