Marble gargoyle in the form of a child's head, by a 16th-century Florentine artist. This marble fragment comes from the Cathedral exterior and is one of the devices serving in the projection of rainwater away from the roof: 11 are still on site, although deactivated. These gargoyles served in protecting the foundations and walls from penetration of water, with resulting erosion of materials and weakening of structures. The effect was that of a face emitting water from its mouth. The grotesque effect suited this kind of element, which had functions in warding off harms. For this reason, most of the gargoyles of the Cathedral are monsters or animals.