The Palace of Justice, Rome (Italian: Palazzo di Giustizia), the seat of the Supreme Court of Cassation and the Judicial Public Library, is located in the Prati district of Rome. It fronts onto the Piazza dei Tribunali, the Via Triboniano, the Piazza Cavour, and the Via Ulpiano. The huge building is popularly called in Italian the Palazzaccio (the bad Palace).