I couldn't eat chicken for nearly 15 year after that!
The World's Fair of 1964-1965 -- Great Show. Most of the best stuff ended up in Disneyworld (the Disney Imagineers made most of it). VP candidate Bill Miller's daughter worked as a guide, and Leonard Miller of the Federation of Economic Education had a great free market exhibit. Had a great time, of course it helps when you in your early 20's.