I've asked myself this question a few times over the past 8 months. You want to go somewhere that may not necessarily be infant friendly, and are wondering how they'll take it. I've come up with a list of a few places I've been over the past several months and decided to give you my thoughts on being there with a baby.
The Zoo: I've been to the zoo twice with my son so far. Once when he was around 2 months, and again when he was 7 months. He was totally indifferent the first time, but I'd say he enjoined the second time. the indoor aquarium area was the most interesting to him, as the brightly colored fish were super easy for him to see and he was able to get right up against the glass. It's defiantly not a hassle to bring a baby to the zoo, people do it all the time. In most cases, babies under 2 are free, so if you're wondering whether or not to bring your little one along, totally! Don't forget the sunscreen though!