Cool place in Oklahoma City to take pictures?

We have the Botanical Tube in the downtown park; huge new building going up downtown as well that would be a good shot. In NW OKC is the blue-green round tower, about 20 stories high that has been a landmark since the 1960s. Just off of NW Highway west of May Avenue. Used to be known as Founders tower but called something else since it was converted to condos.