Does anyone in OT have any memories of Rath? I was in Waterloo this week and drove by what's left of what used to be the world's largest packing house. There isn't much left of it and what's left is obviously in ruins, but it was interesting to think about what it once was. The link has some interesting photos of the old beef building before it was demolished. The design of Rath's plant apparently played a part in the company's demise, as newer, single level meat packing plants proved to be far more efficient.
https://www.loc.gov/resource/hhh.ia0524.photos/?sp=1&st=image
https://www.loc.gov/resource/hhh.ia0524.photos/?sp=1&st=image