The Palace of Justice is one of the most magnificent and impressive buildings in contemporary Rome, the greatest work of Guglielmo Calderini. It is a travertine marble rectangular building of massive architecture. Built between 1899 and 1910 to house the Supreme Court of Cassation, it is called a 'palazzaccio' by the Romans because of its appearance and function. The façade is crowned by a bronze quadriga by Ettore Ximenes. The access ramps on the side facing the Tiber are adorned with colossal statues of jurisconsults, while the façade facing Piazza Cavour has the Savoy coat of arms at the top.
From the central portal, surmounted by the sculptural group of "Justice between Law and Force" by Enrico Quattrini, one passes into the splendid courtyard, with arches and a forepart preceded by stairs. Here there are other statues of jurists and in the centre the statue of the Law. Inside, in the Salone d'Onore (Hall of Honour) there are frescoes by Cesare Maccari and his students, with themes inspired by the history of law.