Orvieto, Basilica Cathedral of S. Maria Assunta (or Duomo): the façade, whose building started at the end of the XIII century. Detail of the covering of the four pillars of the doors. These are marble slabs with bas-reliefs executed between 1320 and 1330 by Lorenzo Maitani with the help of Sienese and Pisan craftsmenSubject: biblical scenes from creation to Jubal: six series of bas-reliefs of an ivy plant whose branches divide the main scenes. In the first pillar, therefore, the Stories of Genesis are contemplated: Creation of fish, birds, plants; Creation of mammals; Creation of man in the presence of two angels; God gives life to Adam and extracts the rib to create Eve; Adam and Eve brought into Eden, the original Sin, the condemnation; Expusion from Eden; Adam hoes and Eve lines up; Offers of Cain and Abel; Cain kills Abel; Noemi teaches a child to read; Juval invents sounds; one of Adam's sons with a compass.