I am going to WDW with my father again in June. This will be almost exactly 40 years after he took me as a child in 1973. Even though we have both been back many times on our own, this will be the first time we are returning together. He is kind of a Walt Disney Historian (amateur of course ). I need some new material to dazzle him on this trip. What are those tidbits of knowledge that you save for the hardest to impress? What are your favorite things to show people? It can be about Walt or anything at WDW. I need your help.