I am happy to report that I lucked out in a ticket lottery and got to attend the launch of Atlantis, the last shuttle to fly into space. It was fantastic! (I had seen one other shuttle launch by accident years before—I happened to embark on a cruiseship that was departing from Fort Lauderdale when we heard an unidentifiable roar outside. We rushed out onto the deck to see what it was, and caught sight of a shuttle struggling against the pull of gravity aiming for the stars. That was pretty cool, too.)
I was also on a bus in Sydney, Australia, when a rally/riot broke out in support of East Timor’s independence. That was terrifying.