Summary
At last, it’s time for the official ending to this thread. I’d like to begin with a brief overview of how many "must-see" exhibits opened per decade. Obviously a vast majority of the exhibits included opening within the last three to four decades, with seven exhibits from the last three years alone.
19th century 1 (1875)
1900s 2
1910s 1
1920s 3
1930s 2
1940s 0
1950s 0
1960s 2
1970s 7
1980s 7
1990s 17
2000s 31
2010s 20
2020s 7
Here is a list of the number of taxa that appeared between all 100 exhibits. More than half of the exhibits featured birds of some sort while marine mammals proved to be the least prevalent.
Birds (non-passerines): 57
Reptiles: 44
Fish: 39
Hoofstock (other): 37
Small Carnivores: 28
Cats: 27
Passerines: 24
Amphibians: 23
Bears: 14
Old World Monkeys: 12
Rodents: 12
Canids: 11
Elephants: 10
Afrotheria (other): 9
Apes (great & small): 9
New World Monkeys: 9
Rhinos: 9
Prosimians: 7
Zebras: 7
Xenarthrans: 6
Giraffes: 6
Hippos: 6
Bats: 6
Marsupials/Monotremes: 4
Pinnipeds: 3
Cetaceans: 2
While 100 exhibits were featured on the main list, there were far more mentioned within the thread itself. Between the exhibits that made the list, similar exhibits and honorable mentions, a grand total of 239 exhibits were presented on this thread (thanks to
@CGSwans for tallying that up). Here are the combined totals showing how many exhibits were mentioned per zoo.
13 Exhibits: Bronx Zoo
12 Exhibits:San Diego Zoo
9 Exhibits: North Carolina Zoo, Omaha’s Henry Doorly Zoo, Saint Louis Zoo
7 Exhibits: Cincinnati Zoo, Nashville Zoo
6 Exhibits: Columbus Zoo, Houston Zoo, San Diego Zoo Safari Park
5 Exhibits: Brookfield Zoo, Memphis Zoo, Woodland Park Zoo
4 Exhibits: Cheyenne Mountain Zoo, Fort Worth Zoo, Lincoln Park Zoo, The Living Desert, Milwaukee County Zoo, Minnesota Zoo, Monterey Bay Aquarium, Shedd Aquarium, Zoo Tampa
3 Exhibits: Arizona-Sonora Desert Museum, Busch Gardens Tampa, Dallas Zoo, Denver Zoo, Detroit Zoo, Disney’s Animal Kingdom, Indianapolis Zoo, Zoo Miami, Northwest Trek Wildlife Park, Point Defiance Zoo, Santa Barbara Zoo, Smithsonian National Zoo, Toledo Zoo
2 Exhibits: Zoo Atlanta, Audubon Zoo, Cleveland Metroparks Zoo, Fresno Chaffee Zoo, Georgia Aquarium, International Crane Foundation, Zoo Knoxville, Los Angeles Zoo, Oklahoma City Zoo, Oregon Zoo, Philadelphia Zoo
1 Exhibits: ABQ Biopark, Akron Zoo, Alaska Sea Life Center, Alaska Wildlife Conservation Center, Aquarium of the Pacific, Binder Park Zoo, Birmingham Zoo, Buffalo Zoo, California Academy of Sciences, Cameron Park Zoo, Cleveland Museum of Natural History, Duke Lemur Center, Florida Aquarium, Fort Wayne Children’s Zoo, Fossil Rim Wildlife Center, Franklin Park Zoo, Henry Vilas Zoo, Hogle Zoo, Jackson Zoo, Jacksonville Zoo, John Ball Zoo, Kansas City Zoo, Living Coast Discovery Center, Maryland Zoo, Monkey Jungle, Mystic Aquarium, National Aquarium, New York Aquarium, Oakland Zoo, Oregon Coast Aquarium, Palm Beach Zoo, Phoenix Zoo, Pittsburgh Zoo, Queens Zoo, Racine Zoo, Reid Park Zoo, Rosamond Gifford Zoo, Seattle Aquarium, Seaworld San Diego, Sedgwick County Zoo, Stone Zoo, Tennessee Aquarium, The Wilds
Next, here are five candidates for what I would consider to be the highest concentrations of "must-see" exhibits in the US.
5. Shedd Aquarium's Original Gallery. With the iconic Caribbean Reef tank acting as the glorious centerpiece, the main floor of Shedd has four galleries all jam-packed with fascinating aquaticlife. Everything from the Great Lakes to Islands to the much more modern Amazon Rising displays, there is enough in this one area to keep any aquarist engaged for hours. Elevator access to Wild Reef is here as well, plus the entrance to the vast hall leading to the Oceanarium.
4. Bronx Zoo's South Half. Predominantly featuring African and Asian themed exhibit areas, this vast portion of the zoo is home to a majority of the park's most outstanding attractions. Jungle World, Himalayan Highlands and Wild Asia Monorail comprise an incredibly holistic set of Asian exhibits that cover a motley of different environments. Heading westward will take you through the historic African Plains habitats, Gelada Reserve and Congo Gorilla Forest. With the Mouse House and a recently opened budgie aviary sandwiched between all of the action, there is enough zoo here to keep you busy most of the day.
3. Saint Louis Zoo’s Historic Hill. A stunning garden valley surrounded by a collection of century old animal houses including a bird house, primate house (plus a collection of modern outdoor enclosures) and the extraordinarily impressive herpetarium building. Behind the monumental bird house is a series of quaint outdoor aviaries dubbed the Bird Gardens that leads up to the brilliantly restored 1904 World’s Fair Flight Cage which inspired the zoos conception. This is perhaps the most fascinating conglomerate of zoo history in the US and it is all done beautifully.
2. Omaha’s Henry Doorly Zoo’s Main Entry Plaza. A collection of iconic mega-buildings all situated right inside the zoo's gates. No matter if you choose the Lied Jungle, Desert Dome, Kingdoms of the Night or the Scott Aquarium, you are guaranteed to start off a visit by walking into one of the largest and greatest of its kind in the country. This also includes the entry gateway to African Grasslands as well as a comparatively modest but still impressive insectarium.
1. San Diego Zoo’s Lost Forest. With over 30 acres of stunning rainforest environment to explore, there is arguably no better assortment of exhibit complexes to be found anywhere else in the US. And it truly feels like you're exploring with a maze of trails, boardwalks and elevators making it easy to get lost in the lush jungle. Enclosures for hippos, tigers, okapi, tapirs, great apes, a plethora of monkeys and the trio of big walkthrough aviaries supplemented by countless other bird cages and herp habitats create a zoo experience like no other.
Now it’s time to reveal the results of the community poll that was conducted. I received a total of 24 responses from you all and the results were a bit surprising in some ways. There wasn't a single exhibit where everybody “strongly agreed” and there were only a few that were met with unanimous approval; those exhibits were…
- Africa Rocks, San Diego Zoo
- Congo Gorilla Forest, Bronx Zoo
- Expedition Peru: Trek of the Andean Bear, Nashville Zoo
- Kelp Forest, Monterey Bay Aquarium
- Monkey Trails and Forest Tales, San Diego Zoo
- Museum of Living Art, Fort Worth Zoo
- Scripps Aviary, San Diego Zoo
- World of Birds, Bronx Zoo
I won’t lie, I was not expecting to have just eight inclusions that were unanimously agreed upon. However, there were many instances where the neutral option was selected, meaning nobody truly disagreed with some inclusions either. There were a total of 44 exhibits where everybody either agreed or were netaural on the exhibit’s inclusion, without outright disagreeing.
- Abbott Oceanarium, Shedd Aquarium
- African Rift Valley, Cheyenne Mountain Zoo
- Amazon and Beyond, Zoo Miami
- Appalachian Cove Forest, Tennessee Aquarium
- Asia Trail, Smithsonian National Zoo
- Australia: Wild Extremes, National Aquarium
- Bear Exhibits, Alaska Wildlife Conservation Center
- Bird House, Smithsonian National Zoo
- California Trail, Oakland Zoo
- Cat Exhibits, Northwest Trek Wildlife Park
- Chimpanzee Exhibit, Kansas City Zoo
- Condor Ridge, San Diego Zoo Safari Park
- Desert Lives, Phoenix Zoo
- Desert Loop Trail, Arizona-Sonora Desert Museum
- Field Exhibits, San Diego Zoo Safari Park
- Galapagos Islands, Houston Zoo
- Gelada Reserve, Bronx Zoo
- Giants of the Savanna, Dallas Zoo
- Gorilla Exhibit, Woodland Park Zoo
- Into the Deep: Exploring our Undiscovered Oceans, Monterey Bay Aquarium
- Jaguar Cove, Woodland Park Zoo
- Jungle World, Bronx Zoo
- Lemur Forests, Duke Lemur Center
- Living Northwest Trail, Woodland Park Zoo
- Manatee Coast, Columbus Zoo
- Migratory Songbird Aviary, Columbus Zoo
- National Amphibian Conservation Center, Detroit Zoo
- Ocean Voyager, Georgia Aquarium
- Oklahoma Trails, Oklahoma City Zoo
- Penguin Conservation Center, Detroit Zoo
- Predator Ridge, Denver Zoo
- Promedica Museum of Natural History, Toledo Zoo
- Rhino Savanna, The Living Desert
- Russia's Grizzly Coast, Minnesota Zoo
- Scaly Slimy Spectacular, Zoo Atlanta
- Seabird Aviary, Oregon Coast Aquarium
- South America's Pantanal, Houston Zoo
- Tiger Base Camp + Tiger Lair, Minnesota Zoo
- Tropic World, Brookfield Zoo
- Walkabout Australia, San Diego Zoo Safari Park
- Water's Edge: Africa, Cheyenne Mountain Zoo
- Watani Grasslands Reserve, North Carolina Zoo
- Wings of Asia, Zoo Miami
- World of the Insect, Cincinnati Zoo
The following exhibits were mostly popular, but also had at least one or more people disagree or in some cases strongly disagree. Regardless, at least 50% of voters agreed with the exhibits’ inclusion overall.
- 1904 World's Fair Flight Cage, Saint Louis Zoo
- African Grasslands, Omaha's Henry Doorly Zoo
- Amazon Rising, Shedd Aquarium
- Arctic Ring of Life, Detroit Zoo
- Asian Highlands, Omaha's Henry Doorly Zoo
- Charles H. Hoessle Herpetarium, Saint Louis Zoo
- CHINA, Memphis Zoo
- Desert Dome, Omaha's Henry Doorly Zoo
- Elephant Odyssey, San Diego Zoo
- Florida: Mission Everglades, Zoo Miami
- Gharial Pond, San Diego Zoo
- Gibbon Islands, Nashville Zoo
- Heart of Africa, Columbus Zoo
- Hummingbird Habitat, San Diego Zoo
- International Orangutan Center, Indianapolis Zoo
- Kilimanjaro Safari, Disney's Animal Kingdom
- Kingdoms of the Night, Omaha's Henry Doorly Zoo
- LAIR, Los Angeles Zoo
- Lied Jungle, Omaha's Henry Doorly Zoo
- Life on the Rocks, Arizona-Sonora Desert Museum
- Madagascar, Bronx Zoo
- McNair Asian Elephant Habitat, Houston Zoo
- Mouse House, Bronx Zoo
- Ocean Wonder: Sharks, New York Aquarium
- Osher Rainforest, California Academy of Sciences
- Penguin and Puffin Coast, Saint Louis Zoo
- Penguin Coast, Maryland Zoo
- Red Rocks, Saint Louis Zoo
- Regenstein Center for African Apes, Lincoln Park Zoo
- Regenstein Wolf Woods, Brookfield Zoo
- Reptile House, Cincinnati Zoo
- River's Edge, Saint Louis Zoo
- Sea Lion Shores, Omaha's Henry Doorly Zoo
- Suzanne and Walter Scott Aquarium, Omaha's Henry Doorly Zoo
- Teton Trek, Memphis Zoo
- Toyota Elephant Passage, Denver Zoo
- Unseen New World, Nashville Zoo
- Whooping Crane Alcove, International Crane Foundation
- Wild Asia Monorail, Bronx Zoo
- Wild Reef, Shedd Aquarium
- Zambezi River Hippo Camp, Memphis Zoo
That means there were just 7 exhibits where less than 50% agreed on their inclusion on this list.
- Black Bear Falls, Zoo Knoxville
- Elephant House, Cincinnati Zoo
- Pepper Family Wildlife Center, Lincoln Park Zoo
- Predator and Prey Exhibits, Milwaukee County Zoo
- St. Vincent Dolphin Pavillion, Indianapolis Zoo
- Stork Aviary, Racine Zoo
- Wisconsin Heritage, Henry Vilas Zoo
For just about all of these it’s understandable why they weren’t as popular as the rest. Many of these are very niche, unorthodox, or on here for historical significance more than quality husbandry. No matter which way you slice it, it's clear that I probably overdid it a little with the representation for Wisconsin.

There is one however that does baffle me; the Pepper Family Wildlife Center at Lincoln Park Zoo. I have no idea why this exhibit wasn't a more popular choice, although what’s strange is that 50% of people had a neutral opinion of this exhibit rather than flat out agreeing or disagreeing. Perhaps that could be the result of most people having not seen it since it reopened two years ago, but at the same time Galapagos Islands and the National Zoo’s Bird House just opened this year and were mostly well received, so I guess it's just an anomaly of the poll.
Lastly, I asked if this were America's 101 must-see exhibits, what would be the last one? I received a diverse array of answers including many that were featured as similar exhibits or honorable mentions. Only one was suggested more than twice however and that was Arctic Coast at the Mystic Aquarium.
Here are the other answers that were submitted.
- Asia Quest, Columbus Zoo
- Bird House and Garden, Saint Louis Zoo
- Congo Expedition, Columbus Zoo
- Elephants of the Zambezi River Valley, Sedgwick County Zoo
- Gorilla Falls Exploration Trail, Disney’s Animal Kingdom
- Gorillas of the African Forest, Houston Zoo
- Islands, Louisville Zoo
- Lion Camp, San Diego Zoo Safari Park
- Mid-sized Carnivore Conservation Center, The Wilds
- Open Ocean, Monterey Bay Aquarium
- Orinoco Rainforest, Dallas World Aquarium
- Rare Rhinos of Africa, Great Plains Zoo
- Sanctuary Asia, Oklahoma City Zoo
- Sea Lion Cove, Fresno Chaffee Zoo
- Texas Wilds, Fort Worth Zoo
- Underwater Beauty (closed), Shedd Aquarium
- Watershed Heroes, Sequoia Park Zoo
- Zoo 360, Philadelphia Zoo
Somebody also submitted "Byron Comp III" and I have no clue what that means.
With that, we’ve finally reached the finish line! Following up "Europe's 100 Must-see Exhibits", which I still believe to be the finest piece of work ever produced on this site, was a daunting task. I had anticipated this spiritual successor would receive similar interest, but even I wasn't expecting such great participation. After six months since the beginning of this project, we've generated 83 pages of discussion and 1,654 replies from over 100 members across the globe. That is ridiculous in the best possible way and I am incredibly grateful. Along the way there's been intriguing discussion, detailed personal anecdotes and fierce debate regarding the selections and it's been a blast to watch it all unfold. Above all else it's been great to familiarize people with exhibits they might've been unaware of prior to this thread. That's what the whole point of this exercise is after all, so even those few exhibits that people vehemently disagreed with added value one way or another. So one last time I'd just like to say thanks to everyone who made this thread such a success. While it may be over, I plan on jumping back in from time to time to provide additional accounts when I feel necessary to do so.
And now I slip back into obscurity until
@lintworm comes up with another idea I can copy...
Jokes aside, I have other ideas for wholly original long form threads down the line. I've even gotten a head start on one within these last few weeks, but don't expect it too soon. If my agonizingly slow rate of getting these final posts done hasn't made it glaringly obvious, I've gotten pretty burnt out from writing long, in-depth posts in threads like these. At the halfway point of this thread people listed their five favorite exhibits presented up to that point, so I will leave you with my personal top 10 favorite "must-see" exhibits that I've seen in person (which is why there isn't anything from Bronx, for example).
Honorable Mention: National Amphibian Conservation Center, Detroit Zoo
10. Pepper Family Wildlife Center, Lincoln Park Zoo
9. Amazon Rising, Shedd Aquarium
8. Monkey Trails and Forest Tales, San Diego Zoo
7. African Grasslands, Omaha's Henry Doorly Zoo
6. Charles H Hoessle Herpetarium, Saint Louis Zoo
5. Wings of Asia, Zoo Miami
4. Russia's Grizzly Coast, Minnesota Zoo
3. Africa Rocks, Sam Diego Zoo
2. Kingdoms of the Night, Omaha's Henry Doorly Zoo
1. Field Exhibits, San Diego Zoo Safari Park
fini.