Now assumed to be an ancient Roman manhole cover or part of a first-century statue, past generations thought Rome’s “Mouth of Truth” (La Bocca della Verità) to be a sort of ancient lie detector. Allegedly, it would cut off a person’s hand if it was placed in the mouth while the person spoke a lie. Later, priests in the Middle Ages would put scorpions in it to help perpetuate the myth.i The Mouth of Truth also appeared in the film Roman Holiday with Gregory Peck and Audrey Hepburn.