A frequent criticism of the Book of Mormon is that the people, culture, population size, and advancements of the people it describes couldn't possibly be real. Its historicity is regularly challenged along the lines of the biases that modern people have about ancient people and claims that so-called "primitive people" wouldn't have been able to achieve what the Jaredites, Nephites, and Lamanites achieved.
This modern digital reconstruction of the great city of Tenochtitlan (now modern-day Mexico City) is a full-throated rebuttal of such presentist and, frankly, bigoted thinking. It's truly amazing what we haven't been aware of simply because of the biased rhetoric about ancient Aztec and Mayan civilizations.