Architecutal Scale Model of San Francisco
Autodesk, and creative agency, Steelblue, have teamed up to create one of the largest 3D-printed sculptures ever made: a workable 1:1250 scale resin model of San Francisco. It took six years to design, and two months to print.
http://thecreatorsproject.vice.com/blog/autodesk-3D-prints-the-future-skyline-of-san-francisco
From the video in the article, it looks like this was fabricated in the AutoDesk Pier 9 workshop.