The Mouth of Truth – Rome, Italy - Atlas Obscura

The Mouth of Truth

The yawning maw of this pagan visage is said to bite off the hands of liars. 

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Long before the modern lie detector and its harmlessly jittering graphs and wires were invented, the superstitious and untruthful faced a much more severe fate between the jaws of the Bocca della Verità, or Mouth of Truth, an ancient carving which is said to bite the hands off of liars.

While no one is exactly sure when or why the frieze was created, there are a number of theories. Dating back to around the 1st century CE, the Mouth of Truth is a tall stone disc carved into a humanoid face with hollow holes for eyes and its gaping mouth. The original purpose of the large medallion has been theorized as everything from a ceremonial well cover, to a piece of fountain decoration, to a manhole cover. The face itself has been said to represent a pagan god although exactly which one is up for debate with scholars guessing at everyone from forest god Faunus, to sea god Oceanus, to a local river god.

While the origin is up for debate the one unifying legend surrounding the stone carving is that if one were to stick their hand inside the disc’s mouth and tell a lie, the rocky maw would bite the offending hand off. This belief seems to have originated during the Middle Ages when the disc was supposedly used during trials having the accused put their hand in the slot and if found to be untruthful a hidden axeman would lop off the appendage. While this use seems to be apocryphal, the superstition persists to this day.

The Mouth of Truth, which now rests outside the doors of the Basilica di Santa Maria in Cosmedin, has been used as a whimsical lie detector in a number of movies and video games, most famously in the 1953 romance, Roman Holiday, in which the carving was a major plot device.    

Know Before You Go

You can choose your own attire to visit The Mouth of Truth, but if you decide to enter the church and see St. Valentine's Skull, you'll want to make sure your shoulders and knees are covered. If not, you'll wear a plastic tarp over your shoulders or be denied entrance.

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