1. Columbus Zoo Columbus Zoo showcases animals from 5 continents and has an excellent aquarium and reptile house. It even has two African areas and two Asian areas. It also exhibits koalas. 2. Living Desert Zoo and Gardens This hidden gem in Indian Wells/Palm Desert is charming. It has North American and African desert animals as well as nature trails, gardens, and spacious exhibits. Overall, it is an unusual, excellent zoo, even higher than San Diego! 3. San Diego Zoo San Diego Zoo has excellent exhibits for pandas, hippos, koalas, an excellent reptile house, aviaries, and Elephant Odyssey (an excellent exhibit). It is not as geographically complete as Columbus Zoo, but it is an excellent zoo. 4. Erie Zoo Erie Zoo has a large collection of African animals (meerkats, lions and rock hyrax in the main building, giraffes in the center of the zoo, and Kiboka Outpost- an African area- with zebras, rhinos, warthogs and more. It also has an excellent children's zoo and Wild Asia, with Asian reptiles. 5. Bronx Zoo My original #5 was Orange County Zoo, but Bronx is better. JungleWorld is excellent, the ibex exhibit is good as well, World of Reptiles is another excellent exhibit. Madagascar is one of few zoos with a Madagascar building/area. #2 in Madagascar exhibits goes with Cleveland in PCA, and #3 at tiny Akron.