The "Doctor Who" 50th Anniversary is nearly upon us, and a new trailer for "The Day of the Doctor" has arrived featuring new scenes, new monsters, and the return of Rose Tyler. In this new "Doctor Who" 50th Anniversary trailer, we see John Hurt, David Tennant, and Matt Smith unravel the mystery of the Doctor in front of our eyes, including a red diamond that looks mysteriously like The Moment. What do you make of this jam-packed trailer? Check out this "Doctor Who" 50th Anniversary trailer photo gallery below!