Plenty of elaborate technics in there - scaling, deformations, hyperbolical projections - quite impressive and nice to look at.
The detail in some buildings is extreme too. The base design must have taken quite some time.
But like Tainotim noted, for me too, this is a pleasant hypergeometric picture superposing unusual projections and scalings, not a map.

It's a kind of concept of extremely curved embedded space-times but using cities (http://www.visualphotos.com/image/1x...verses_artwork)

Congrats to the author in any case.