This build was supposed to be a steampunk collaboration build on a server I used to be active on (league of extraordinary builders). It never really became a collaboration builld because nobody seemed to be interested.
I found these screenshots together with another build I did on that server so here they are!

As you probably can see by the snow, it's an old build. While building there have been a few updates which made the biomes change. 
After I made all the buildings, I decided to make every area accesable. A lot of paths are parially hidden inside the mountain, same as most of the buildings. This made it even busier but sure was a bit of a challenge.