|I remember being a little girl with a key in a nursery-rhyme or fairy-tale park. I inserted the key into boxes that played audio recordings of rhymes or stories related to the characters or structures in question.
Neither my parents nor my aunt can tell me where I was. I've searched extensively on the Internet, and, to this day, there are fairy-tale parks in Oakland and Sacramento with this feature. We lived in California for a summer when I was five, but in Fresno; I doubt our parents would've driven three hours to take us to a fairy-tale park.