[pests]

If you like procedural generation check out [0]. His recent blog posts have been about his Minecraft-like voxel engine (currently being used for Everquest Landmark I believe) but he has a lot of great gems in his archives.

Two recent articles about his language to randomly generate architecture, and two older ones about city generation:

http://procworld.blogspot.com/2014/11/cantor-city.html

http://procworld.blogspot.com/2014/11/life-without-debugger....

http://procworld.blogspot.com/2011/07/screenshots-of-buildin... - Builds a city over rocky terrain.

http://procworld.blogspot.com/2011/07/city-lots.html

The video in the second one is really cool from a programming and debugging perspective.

[0] http://procworld.blogspot.com

ed: Added more city-generation links.