Between 1960 and 1965 Gio Ponti worked on the headquarters of the religious congregation Notre Dame de Sion, located on the Janiculum Hill in Rome. His contribution to the project has been unidentified until recently. In 2014, the building was converted to house the Catholic University of America and the Australian Catholic University. This occasion gave architects of AeV Architetti the opportunity to carry out historical and archival research on the original project, the results of which are presented here. The book is enriched with the addition of detailed original drawings of the furnishings that still exist 50 years after the building was designed. Text in English and Italian. AUTHORS: Cinza Abbate is an architect and a professor at Temple University in Rome. She was the former director of the Rensselaer Politecnico di Roma, and the Italian representative at the International Energy Agency for architectural integration of renewable energy. Since 2011, she has been an architectural advisor at the American Academy in Rome and a member of the scientific committee of the Energy Forum. Carlo Vigevano, architect, is an expert in the field of heritage historic building restoration and sustainable architecture. He has been an architectural advisor at the American Academy in Rome since 2011. He has taught as guest professor at several universities and has participated in research projects on urban quality for sustainability in Europe with the Department of Architecture and Urban Planning of the Universita di Roma. As team leader, he has won several Italian architectural competitions. SELLING POINTS: . A recently rediscovered project by Italian architect and designer Gio Ponti . Includes archival images and detailed original drawings of the furnishings and interiors 22 colour, 37 b/w images