Polycount Forum - View Single Post - What Are You Working On? 2013 Edition
ArtStation - Rust - Radtown Buildings, Howard Schechtman
Factories (game asset) by ~MikeMS on deviantART
mine, ioan dumitrescu
ArtStation - SimCity Concepts, Randall Mackey
factory by jonone.deviantart.com on @DeviantArt
Quadrupedal walking building. Also has treads. Probably a factory, could be a house.
Iconic image of a powerplant (architecture 3D models) by Kvakling