Most ballparks do have something special to offer. However to be honestly impressed, we'll that's becoming a very hard thing to do.
It would mean a ballpark would have to stand out, and be so different from every other stadium that we could say to ourselves... now that was something we've never seen before... because we have seen it before, and last time it had a barn, or a warehouse or a city scape... you get the point. It's the same thing in a different shirt and tie.