Everyone knows Americans don't agree on pronunciations.
That's great, because regional accents and dialects are a major part of why American English is so interesting.
Josh Katz, a former Ph.D. student of statistics at North Carolina State University, published a group of awesome visualizations of Professor Bert Vaux and Scott Golder's linguistic survey, which looked at differences in American dialects (via detsl on /r/Linguistics).
His results were first published on The Abstract, the NC State University research blog. The complete set of Katz's maps, updated with the results from more than 350,000 new survey responses, are compiled in the new book "Speaking American," publishing October 25 from Houghton Mifflin Harcourt.
Katz gave Business Insider permission to publish some of the coolest maps from his collection.