Great work on this thread
@pachyderm pro. When you reached out to me about a couple of the specialist facilities that made the cut, I was very hopeful that this would be a well-researched project with a broad and diverse base of different facilities... and you did not disappoint! The inclusion of the country's largest bird park, lemur and crane-focused zoos, pyramidal aquariums and multiple safari parks was beyond what I would have guessed this list would have looked like, and it was all the better for it. I think many of us get so caught up in how similar the theming and collections are in most American zoos we forget the diversity of collections we really do have.
I'll try not to do much backseat driving on your selections... I agree the White Oak horse has been beaten enough at this point
I only started my guesses after California, and I found out while going over it again that I had two list versions (one of which had a number different than 50) after haphazard revising and I don't know which one was my "official". The ones I *definitely* didn't guess were
White Oak, Tampa, Moody Gardens, and the
ICF (mainly because I forgot it existed

). I waffled on Oregon Coast Aquarium after Mystic didn't make the cut - originally had it, then deleted it, only to have it be in the 50 after all. I also wrongly guessed (in at least one of the list versions) that Fossil Rim, Zoo Atlanta, Oregon Zoo, and National Aviary would be in there but I understand the logic on those as well.
With that said, in between the start of this thread and now Tampa opened its new panther complex which looks so genuinely awful it's enough to make me question if I should have put it on this thread to begin with. Perhaps that seems overly harsh, but it's definitely one of the more interchangeable selections.
The selection I stand most surprised by at the end was Tampa. It makes sense that it was one of the more borderline cases; to be honest, I still struggle to see exactly how distinct it is from that group of other solid but more generic zoos that didn't make the cut. Of course, I haven't been there and I'm willing to acknowledge others may be in a better place to judge that. Of the near-misses in that group I was most surprised by Atlanta: I thought their new reptile complex, notably large gorilla and orangutan population, and handful of rarities like Drill would be enough to fit them in, but I figured it was borderline too.
I never seriously considered any reptile parks minus St. Augustine.
I originally thought you might include another reptile specialist facility (either Reptile Gardens or Reptiland) but I didn't have either in my list and I'm not surprised you didn't in the end. The US has quite a few herp specialist places, but I'm not sure I'd qualify any as "must-see" myself other than St. Augustine. Honestly, several of the zoos you *did* include are more noteworthy for herps than almost any specialist facility we have!
Unlike some people, I predicted Central Park and (with the caveat that I haven't been) I fully agree it should be in here. It's one of the most famous and iconic American zoos, one of the oldest by any definition you use, and its complete overhaul and modernization is a great example of how much American zoos changed the later decades of the 20th century. It's a prime example of an older, space-constrained zoo that really adapted itself to the new era of zoological design.
Someone mentioned Point Defiance as a near-miss they thought could have been included. I didn't expect it to make the cut; I can see arguing for its inclusion based on the two aquariums and outdoor marine habitats, but I feel like Oregon Coast is similar in that regard and is a better example of that feature. The other parts of PDZ are good, but probably not unique enough to warrant inclusion in this list - the outdoor terrestrial collection is pretty small and standard besides musk ox. I also sort of like the idea of Alaska Sealife being included, but it's a very remote facility for most of us - which could be a consideration as many people clearly think admission cost is.