A few comments:
- San Diego, Omaha, Bronx and Saint Louis have 5 entries each...and counting! Who will come out on top?
- For those wishing to see more representation from Columbus, my gut feeling is that you will be disappointed. It's a big, enjoyable zoo and Heart of Africa was always going to be a slam dunk. The Migratory Songbird Aviary was arguably a slight surprise to be included, although Polar Frontier's omission balances it out. But I don't see anything else from Columbus being included beyond those two entries. Either way, there's no comparison with the "Big 4" that will have loads more top exhibits on this list than Columbus.
- There are other notable zoos that are really impressive but won't necessarily be showcased on this fun ZooChat thread. Look at Sedgwick County. It's one of the best all-round zoos in America, but there's nothing exceptional there that will make this list. I think that North Carolina doesn't have a single bad exhibit anywhere, and in my opinion it's a lock for one of the top 8 zoos in North America, and yet it will probably end up with a single entry. Zoo Miami is an all-day zoo that everyone seems to love, yet it's not close to the "Big 4" on this list. It is what it is.
- It's fascinating to see a few differences between the must-see European predecessor of the American list. When it comes to herps, that list from
@lintworm had Antwerp (part Aquarium, part Reptile House), Cologne (part Aquarium, part Reptile House, part Insectarium), Berlin (part Aquarium, part Reptile House, part Insectarium), Freilandterrarium Stein (only 15 species), Randers (Snake Temple zone) and Prague (Giant Salamander House) as specifically herp-focused exhibits.
By comparison, the American thread contains FOUR genuine Reptile Houses and I love the inclusion of all of them. Fort Worth's MOLA, Saint Louis's historic Herpetarium, Atlanta's SSS and Los Angeles's LAIR are all valid entries.