What attraction would you suggest FIRST to an out-of-towner before any other of these 20 selected attractions?

As Oklahoma City residents, we take our points of interest for granted, not realizing that a diverse group of people will show interest in what we have to offer visitors to our city. We will indeed have a growing list of "must see" places to visit in the future, especially with the Native American Cultural Center. And since the cultural center will see life before the end of the decade, I will go ahead and toss it in this poll.

If you have an attraction that is not on this poll, but is deemed worthy of recommendation, post it here and describe why you fell this is a "must see". If you feel there are several, I enabled the multiple choice option for you.