Cool site, although it does have a good number of data errors.
Interesting maps, though unsurprising.
link?
link.
As I warned Sbane however, you might need to upgrade Google Earth, and your computer will need to have a lot of memory. The data file is naturally huge.
There's a web browser version of every map (like the Minneapolis one you posted). It's neat, because you can enter an address and it zooms in too.
A warning that it doesn't properly work very well on Firefox. When you scroll or click, Firefox gets the wrong coordinates and things get screwy.