Casey At the Bat : Milestones seen

While traveling with the Orioles this season, I have had the opportunity to see a lot of great cities, ballparks, players, etc. However while tracking the near no-hitter in Toronto on Sunday afternoon, I realized I have only seen a couple of baseball feats in person.
 
Yesterday, I watched the Orioles' Cesar Izturis collect his 1,000th career hit, and while the Orioles were in Detroit, I watched the Tigers' Johnny Damon get his 2,500th career hit.

That is all. I have never seen a no-hitter, a significant historic homer, a triple play, a player hitting for the cycle, and so on.
 
My question is: What MLB baseball feats have you seen in person?