In recent decades, architectural historians, preservationists, and the general public have shown a growing interest in Fascist-era buildings. Many of the most high-profile examples are those associated with the monumental excesses of the regime. However, new attention has also been focused on more modest buildings that are significant examples of interwar Italian modernism or Rationalism, including former party headquarters (case del fascio). Taking as primary examples works by Giuseppe Terragni, the architect most often associated with Rationalism, as well by Luigi Carlo Danieri and Luigi Vietti, whose interwar contributions to Italian modernism have been less often the focus of scholarly attention, this article traces the postwar histories of case del fascio with the aim of better understanding the ways in which architecture and politics intersect and some of the consequences of this for the contemporary Italian architectural landscape.