La Bocca della Verita (The Mouth of Truth - La bouche de la V閞it? is a marble mask which stands against the left wall of the portico of the Santa Maria in Cosmedin church. The most famous characteristic of the mouth is its role as a lie detector. It attracts visitors who audaciously stick their hand in the mouth.The massive marble mask weighs about 1300 kg and probably depicts the face of the sea titan god Oceanus.Diameter 166 cm.Rome; Italy. 2020.