You can almost hear the splashes of kids jumping into the water in this circa 1960 picture postcard of the pool at Potawatomi Park. Families could (and still can!) enjoy a few hours in the water, then visit the animals at the nearby Potawatomi Zoo, which is the oldest zoo in Indiana. The park, located at 2000 Wall Street, between Greenlawn Avenue and Ironwood Drive, is also home to beautiful flowers and plants in the Muessel-Ellison Conservatory.