1925/28 Marcello Piacentini (1881/1960)
It was expanded in 1936 with the section toward the River Tiber
It now partly houses judicial offices
main hall external portal by Giovanni Prini (1877/1958), internal portal by Publio Morbiducci (1889/1963)
Portraits "Paulucci de Calboli" and "Giulio Giordani" by Adolfo Wildt (1868/1931)
Portrait "Carlo Delcroix" and frescoes by Antonio Santagata
"Statue of St. Sebastian" (symbol of the soldier martyr) by Arturo Dazzi (1881/1966)
Frescoes "King Emperor" and "Il Duce in the shrine" by Mario Sironi (1885/1961)
Interior frescoes and in the courtyard by Cipriano Efisio Oppo (1891/1962)
In the HALL OF THE CENTRAL COMMITTEE
"Wood inlays" 1928 by Edoardo Del Neri (1890/1932). The inlays are also in mother of pearl and ivory with subjects of war alternating with chalices for the holy host
