I hadn't thought of the zoo being immediately adjacent to the med center, but I guess it is. Nice photo. I've seen this same view many times flying into Hobby from Austin on Southwest. Could be that whoever took the pic was on Southwest as well.
For a sense of scale, the closest wind turbines near the center of the photo are about 13 miles away from the Ren Cen while the bulk of those in the background are 20+ miles away.