Pia Gate is one of the gates of the Aurelian Walls of Rome, located in the Nomentano district, known for the Risorgimento episode known as the "Breach of Porta Pia", at the outlet of Rome, on September 20, 1870, when it was the scene of battle between Italian and papal troops. It is one of the last works by Michelangelo Buonarroti, built on the orders of Pope Pius IV (hence the name) between 1561 and 1565. The present appearance is the result of several changes. Most experts believe that the main interest of Michelangelo was facing more-theatrical aspect and pictorial of the Gate than to that function: for a more dramatic effect was back from the line of the walls, which was connected to two stretches of oblique side wall, topped by battlements of the same door, and it was in one arch. A second arch was opened around 1575, to facilitate transit traffic. The exterior facade was completed in 1869, on Neoclassical design by Virginio Vespignani: houses two statues flanked by four columns. Inside buildings that form a courtyard, unite the two sides, is now the Historical Museum of the Bersaglieri, with monumental Enrico Toti's tomb.