Having stumbled into DecoPix, I found a few peeks at the old Coca-Cola plant in Indianapolis (or what purports to be -- the caption says "Indianapolis" but some of the links say "Cincinnati." Heads, race cars; tails, unique chili. Call it!).
We did have a nifty Deco soft-drink building and at least part of it is still around. The city had its very own architectural terra-cotta company, so it's no surprise a lot of the Art Deco and Moderne facades left here are of that type. (The old Stokely-Van Camp building is a particular gem).
...But there are some interiors to reckon with, as well. I've got to go see this barber shop in Circle Tower. (Which is itself a stunning Deco wedding cake on Monument Circle).