The design of the large eclectic-style building was the work of Virginio Muzio and Ernesto Pirovano, among the best-known architects active in Bergamo at that time.
Calling on the two architects was the Union of Catholic Social Institutions of Bergamo, which intended to build a new home for the various associations and which also financed the work through a public subscription.
The entire complex is today dedicated to the then president Niccolò Rezzara.
Since its inauguration in 1908, other activities also found a place here: a hotel, a restaurant, stores and housing, a bank, and the editorial office and printing press of L’Eco di Bergamo, the most widely read newspaper by Bergamascans.
There was also the Rubini theater hall, later converted to make way for the Pope John XXIII Convention Center.
