Chi O HQ is in Memphis, TN - right across the street from Pike HQ! It was finished in 1994 and I was lucky enough to visit in 1996. It has our archives, and all the staff offices, a bunch of meeting rooms and even bedrooms for women to stay when they are their fro training and such. And, yes, it is all in shades of cardinal and straw! It's really beautiful, though!
I also took a tour of Pike HQ and it was very nice!
ETA: I don't know if KD was not there then, but we didn't see their HQ...
