[Handro]

Very, very interesting. I particularly was intrigued by this:

Even among cells with similar population and density, the built environment can look strikingly different, the result of different cultural and economic factors in city-building across the country, and a tour of aerial photography gives us a window into the morphological diversity of American urbanity.

So I randomly chose a ranked square (#38) for three cities, Los Angeles, Chicago, and Washington and selected a few random google street images from those quadrants. Los Angeles is the densest at #38 (8,327/ km2), then Chicago (7,288/km2), then Washington (5,380/km2),

Here is the densest of the three, LA #38 quadrant:
https://www.google.com/maps/@34.0885...7i13312!8i6656

https://www.google.com/maps/@34.0868...7i13312!8i6656

https://www.google.com/maps/@34.0831...7i13312!8i6656

Here’s Chicago #38 quadrant:
https://www.google.com/maps/@41.9981...7i16384!8i8192

https://www.google.com/maps/@41.9963...7i16384!8i8192

https://www.google.com/maps/@41.9953...7i16384!8i8192

And Washington #38:
https://www.google.com/maps/@38.8947...7i16384!8i8192

https://www.google.com/maps/@38.8968...7i16384!8i8192

https://www.google.com/maps/@38.8933...7i16384!8i8192

Talk about a major difference. Los Angeles seems the LEAST dense in the sense of urbanity, despite having the highest density in that quadrant.