Since there is a fair amount of reminiscing going on here, thought I'd add this link:
http://www.rootsweb.com/~usgenweb/special/ppcs/ppcs.html
As a young lad, I loved the architecture of the old Omaha Post Office Building, downtown. Unfortunately it was torn down years ago and replaced by a hotel/federal building. However I saw it plus some other sites that brought back many fond memories.
Cheers! Ray