The Fountain of the Tritons and the Mouth of Truth (Fontana dei Tritoni e Bocca della Verità) is located near the portico of the Church of Santa Maria in Cosmedin in Rome. The fountain, designed by Giambattista della Porta in 1580, features two Tritons holding a large shell. The famous "Bocca della Verità" (Mouth of Truth), a marble mask located nearby, is part of the same complex. It is a popular attraction, known for its legend that claims it will bite off the hand of anyone who tells a lie. The combination of the fountain and the Mouth of Truth makes this site an iconic historical and cultural landmark in Rome.