I will start. I went to Woodstock in 1969, the centennial for the Statue of Liberty in 19??, and Op Sail in NYC in 1976.
Let's start with the centennial. I really had no plans of attending. I was at home watching the news reporting on the event that evening. And I just decided to go. Took the train from New Brunswick to Newark. New Jersey Transit provided free buses to Libery Island, where the event was held. Once I got there I discovered that there had been a lottery for the best seats for the event. This section was gated. I was told this by a State Tropper, who then just told me to go on it. So, with no planning on my part, I had a ringside seat right next to the Boston Pops. The show consisted of music and fireworks and it was awesome. After the show, I headed back to the area where the buses were parked that were to return us all to Newark. There were like 5 buses and tens of thousands of people headed for them. This turned out to be a long nite. I think Saigon was evacuated in a more orderly manner. At least no one was shooting at us. I got home at 4 am and watched the event on cable tv. It was then I realize how little tv can do for an event like this. It was not even close.