Well I can vouch for the San Diego zoo, and everyone (visiting tourists from Europe) I've sent there, comes back being overly excited about the experience. I believe that our zoo is the only one outside of China who successfully mated Panda bears and we've had four cubs so far born in captivity at the San Diego zoo.
I usually don't get any pleasure out of seeing animals at a zoo setting, but
our zoo has so much to offer and goes through great length of giving the
animals a somewhat natural habitat, it's been always a nice experience going there.