There are those moments when you feel the weight of history pressing on you -- that awestruck realization that a great moment happened here, and now you're bearing witness. Maybe you've ducked into a tower while on the Great Wall. Or you're standing just inside the Lincoln Memorial. The thing is, I never expected to have that feeling while standing in my basement, squinting up at an unidentified roll of film. But that's what happened to me last Sunday, as I was searching through an old shoebox from my parents labeled "photos."