In this issue of Archeologia dell’Architettura the proceedings of a conference held in Arezzo, on 7-8 February 2020, as part of the European ERC project are published: Petrifying Wealth. The Southern European Shift to Masonry as Collective Investment in Identity, c. 1050-1300, directed by Ana Rodríguez and Sandro Carocci. In the conference, Italian, French and Spanish archaeologists and historians - with the addition of a British and a Pole - questioned, on the basis of written, archaeological and material sources, the great architectural period that goes from the Romanesque to the Gothic of the fourteenth century. At the center of the debate, addressed in 17 contributions, were the varied meanings of an investment aimed at constructing large monumental buildings. On the one hand, the aim was to affirm and represent strong individual, group or community identities, urban or rural, in a historical period of strong conflicts and competitions, on the other to challenge time with stone and high-level buildings. architectural. A challenge, this, largely won since those buildings still define the image of many European historical centers.