The building was originally used as an automotive factory by Standard Motor Truck Company. Letts Industries acquired the building in 1989, undertaking massive renovations within the last three years-, while keeping the historical integrity of the building in tact. This building is unique in that it was a first-gen modern auto factory, incorporating steel-reinforced concrete in its design.
The building still retains the original "martini-shaped" columns Kahn designed, a design element which appears to be one of his trademarks. Walking around, the coolest thing I saw was that the ceilings still had the line shafts and tracks created for Standard.
I seriously could not get over that- it was amazing to be able to see that LIVE! and in-person. I have always imagined what the interior of the Highland Park building (Kahn designed that one for Ford) looked like. It's such an important piece of history in the automotive industry- but I had never seen it. This gave me the actual opportunity to get some context of a similar building since they're both automotive factories.