Wednesday, 26 March Sergio Bettini sarà alla IUAV Doctoral School in History of Architecture to present a research within the restoration project of the crypt of Sant’Agnese in Agone, in Rome. Particular attention will be paid to the analysis of the seabed system designed by Borromini, developed on the basis of a well-known but little-researched design. An opportunity to delve deeper into the historical-constructive analysis of this extraordinary underground space and discuss the many problems that are still open and unexplored.