Wolfgang Amadeus Mozart's "Die Zauberflote" ("The Magic Flute") is widely regarded as one of the most influential operas in history. And while it may seem like a childish fairytale at first glance, it's actually full of subversive symbolism. Joshua Borths explains how many elements of "The Magic Flute" were inspired by Mozart's somewhat controversial involvement with Freemasonry. [5:47]