The city of Epictonia. I've been working on this since October 2012, with no end in sight. This site will continue to be added to until I get bored.
The entire place is built somewhat to scale with naturally spawned villages. I spawned near one at the start and began converting it to nicer buildings, while keeping the scale the same. Thus, while most of the houses and buildings are larger then those in villages, the assumption is that villages are made of small, crappy dwellings, while the city is more affluent and can afford larger stone structures.
For the time being, the goal is to fill the biome with a single large city, and then another biome, and then another etc...

Created entirely in Single Player Creative.

It looks a lot better with the correct texture pack, which can be found here:
https://www.dropbox.com/s/7lgsxc08ut20gw6/Epictonia_Resource.zip?dl=0

A minimap mod is highly recommended to help navigate around town. Even I get turned around every once in a while by this point.