You had to know if I have the aquarium that of course I have the zoo on this list. I spend the entire day at the zoo and I go every year and I still manage to learn something new every time. Plus I can’t help but love all the animals. In the off months a lot of zoos offer free days, although I tend to go in the summer or fall so I can see all the animals. I will say, even more than aquariums, not all zoos are created equally. I happen to live near the Denver Zoo, which is one of the most amazing zoos in the country. However, I’ve been to a LOT of zoos and can say not all of them are worth giving your money to. The Omaha Zoo was pretty great. The John Ball Zoo was okay. The Zoo in Hawaii and Japan were both kind of sad. Zoos should be about animal conservation, so if the zoo near you isn’t, consider withholding your money a little longer.