Mummies. Simply hearing the word conjures up images of pyramids and kings wrapped in cloth, set to be stowed away in coffins for centuries to come. But what many don't realize is that some of the world's most famous mummies were accidental - either frozen in time by extreme temperatures or laid to rest in conditions ideal enough to preserve the body over the years. While catching a glimpse of these human relics is not for the squeamish, they do manage to attract crowds by the thousands each year. And they also provide scientists with clues to how our ancestors lived. Analyzing what they ate for their last meal, or the manner in which they were killed, can paint a vivid picture of life as it was many, many years ago. From infamous historical figures to human sacrifices, these mummies are sure to send a chill up anyone's spine.