...was he wearing spandex too?
PS:
It probably is, but where did Superman's Metropolis came from in the first place?
Well, I just thought of something. Metropolis can be the total opposite of Smallville (small city, small town opposed to an oversized city). In that way, Metropolis is a City Superman can measure his powers up to when challenges, crimes and rescue are concerned. A city where he can face his possibilities and limits...along with finding who he really his and eventually truly be himself, and not a careful-not-to-show-your-powers-to-the-world son of a Kansas farmer (Just my 2 cents).
