Every now and then I watch one of these Japanese "video walk" channels on YouTube and find myself despairing at how wildly better their land use is than in the US.

Obviously some of that is to be expected of an island nation versus a continent-spanning one. And yet, so much of Tokyo seems like it's built at the scale of a small-town main street: Between the major roads with their skyscrapers sit networks of pedestrian-friendly streets with little shops and restaurants, often crossed by even smaller yokocho which themselves have bars and flats. Quiet side streets intermix residential buildings and even single-family homes, and yet somehow these little districts are all linked up together into the world's largest metropolis.