The video that got me into math
Those of you who do know are probably tired of hearing this, but for those who don't: I actually got into math pretty late in my life! In fact, I really didn't like math until my senior year of high school. Up until this point I was thinking of pursuing a career in law and had never even taken an advanced math class. All changed when I came across this video! I would highly encourage you to watch it. It gives a very interesting description of the currently unsolved Reimann Hypothesis, which is one of the most difficult problems currently facing modern math.