For many summers, my family visited Old MacDonald's Farm on the Darien/Norwalk border. This "farm" began operating in 1955, and closed in 1979. The farm consisted of a restaurant, general store, bakery, a large petting zoo, and an amusement park. I remember they made the most awesome cinnamon donut holes! Here I am standing up in my stroller trying to get a closer look at the ducks, next to my two brothers and my mom. I really loved this place and even worked there one summer in high school, managing the general store.
You can find more information/photos on Old MacDonald's Farm here: https://othemts.wordpress.com/2009/07/17/old-macdonalds-farm/
and here: http://ireport.cnn.com/docs/DOC-622518