I think that the Audubon Zoo's reptile house needs to be added to this list. In my personal opinion it was better than the Bronx Zoo's reptile house and on par with the Dallas Zoo's. Objectively speaking it at least is on par with the Bronx Zoo's, if you are to take my bias out of it. The exhibitory is fantastic and incredibly naturalistic (at least recently as they have been updating their exhibits), the design is fairly unique, and the species collection rivals both of the other zoos. Unfortunately there do not appear to be images representing this reptile house on zoochat so you will have to take my word and hopefully others who have been there's word for it.