Has your old school building been demolished yet? If not, you could still show your kid the outside, or even the inside if it has a public use or you don't mind the risks of trespassing. And you could dream of someday becoming super rich and buying the old school building.
I have sort of the opposite problem with my former public high school. In the town where I lived for almost seven years from the ages of 11 to 18, our house was conveniently next door to the grade school playground and a block from the high school. One time the school system bought an old church near the high school and demolished it to make tennis courts, I think. Well, the school board bought our house for expansion and we moved about 15 to 20 miles away. The next time I was in the old town, I walked by and found that the important purpose for which the school board had acquired our house and the house next door was - a parking lot!
And so I sort of have the ambition to someday buy the high school and turn it into my palace as a sort of revenge.
Fortunately the public library, my home away from home in those days, is still standing and in use.
I'm not certain how many other buildings in that town might face demolition as the school system expands. According to Google Maps, the grade school and the high school have now expanded so much they are connected to each other in one giant building that closes off the street that used to separate them.
In the time of Nero's Golden House, the ancient Romans joked that they should leave Rome before that one house expanded to cover all of Rome.
I kind of wonder if the present natives of my old town make the same sort of joke about the school eventually expanding to cover the whole town.