[MonkeyRonin]

Of those 5, only the SunTrust Plaza tower is a John Portman though, and certainly falls under the umbrella of Postmodernism. The other 3 have a lot of historical reference meanwhile, though a much more toned down take on it (no over-the-top neon coloured columns, for example).

(This isn't a bad thing btw. I think Atlanta has a very handsome skyline, and PoMo has seen a big rise in appreciation as well as revival in recent years)