I have seen the AN124 at ORD
. Just once. I don't remember the exact date offhand, but it was around '97 or '98. What an awesome sight! I was heading over to do some spotting by the south cargo area, and there she was, in Anotonov Design Bureau colors. I have no idea why it was there. I do have some pics - buried somewhere. I'll try to do some digging around after the holidays to see if I can find a date.
Why do you want to know, anyway? Curiosity?