I'm attending an Open House at NYU, in the context of which interviews will be held. I guess it's just their way of emphasizing that it's not just about them evaluating your fit to the department but also about you evaluating their fit to your interests. Judging from the info I have, their Open House is pretty much like the selection/visiting days at other schools.
I'm pretty sure that the same is true for the school in Georgia. But why not give them a call?