I listened to this book on audio - there was no option to select. One of my favorite podcasts is A Fork in Time, where a revolving cast hash out the ripples in history if you change one thing from the real world. This is similar, as this story takes the Vikings far beyond Newfoundland, even further than the US Gulf Coast where it is conjectured that the Vikings travelled. Author Laurent Bienet takes the Viking travels to Central America complete with a cultural assimilation that taught the American Natives to forge iron, use the horse, and have 400 years of acclimating their bodies to the cornucopia of European germs.
So when Columbus makes it to the New World, the odds are not stacked against the natives - especially as he travels further to the west. Eventually, his boats and crews are seized, and the outcasts of an Incan inter-family feud escape by following in the footsteps of Columbus back to the old world, where their superior planning skills (and a little luck) allow them to conquer the Spanish kingdom.
If you read Harry Turtledove but want a break from changing the modern wars, this was a good read especially if you're into 16th century historical fiction.