Comment by DanI-S

I've seen similar maps from 100+ years ago of my hometown in the UK:

http://en.wikipedia.org/wiki/File:Birmingham_in_1886.jpg

And of London:

http://www.garwood-voigt.com/catalogues/H242051LondonBrewer....

It's amazing how our idea of what is unachievable by hand has been skewed by computer graphics!