Hard to pick from among the 66 and 83 World Series clinchers, the Delmon Young win over Detroit in 2014, the Brooks statue game (well, not the game), last year's Sunday (September 17) win over the Rays in 11 innings, my first visit to Camden Yards in 1992, watching Mussina beat Toronto from the owner's seats (several rows in front of two Supreme Court justices).
I better stop or I'll think of more.
We were supposed to go the Jim Bunning perfect game on Father's Day 1964, but someone decided it was too hot.