I will be in New Orleans for a couple of days on business and should have a few hours one day open to see one of the facilities. I have been to both the zoo and aquarium, but it was in the late 90s. In your opinion, would my time (3-4 hours) be better spent at the zoo, aquarium, or insectarium? I'll be staying at Harrahs, so all are relatively easy to get to, with the aquarium and insectarium the easiest.