This time, it’s the Sears Tower.
I don’t care what they “rename” it, people are always going to call it “The Sears Tower” (Chicagoans will, anyway). Hell, I still say “Comiskey Park” (and I’m not even a baseball fan). For that matter, I still say “Rosemont Horizon”. And, (leaving Chicago here) I don’t know any music fans who refer to it as anything other than “Deer Creek”.