The Scariest Thing of All Time

I know what you're thinking: the scariest thing of all time has got to be either the root canal, Tilda Swinton's face, or Camden, New Jersey. But nay. The scariest thing of all time is the subliminal demon face that assaults your very spirit for less than a second at a time during The Exorcist. One source reported that the face is fashioned after this mask from the 1964 Japanese film Onibaba.