This guide collects the results of the research carried out in Varese on the complex architectural heritage dating from the 1920s to the 1940s. (…) Starting from the 1930s, construction activity reached its peak with the realization of social projects. Post offices and telegraph buildings, railway stations, and various organizational structures such as Lictor Youth Houses, Italian Fascist Youth (GIL) buildings, corporation buildings, buildings for war veterans and disabled individuals, schools, seaside and riverside colonies were built. Within this context, architecture expresses the ideology in which the young generations of architects were formed and towards which they will tend.