10 Things You Didn't Know About Halloween

If you thought the weirdest holiday of the year was bound to have some strange "unknowns," you'd be right. From the day Americans spend the most on candy, to the bizarre legend of spider sightings, these 10 Halloween facts are sure to pique your curiosity. In any case, you'll have to stop your jaw from hitting the floor when you learn how much money people spend a year on pet costumes.