Piazza Castello is a prominent city square in Turin, Italy. It houses several city landmarks, museums, theaters and cafes. The square is rectangular in shape and houses at its center the architectural complex of Palazzo Madama, while the perimeter is made up of elegant porticoes and facades of several city buildings. These are the Royal Armory, the Teatro Reg…Piazza Castello is a prominent city square in Turin, Italy. It houses several city landmarks, museums, theaters and cafes. The square is rectangular in shape and houses at its center the architectural complex of Palazzo Madama, while the perimeter is made up of elegant porticoes and facades of several city buildings. These are the Royal Armory, the Teatro Regio, two stately buildings on the sides of Via Garibaldi, one of which houses the headquarters of the Piedmont Region, the Royal Church of San Lorenzo, the Subapline Gallery, and the Torre Littoria. In the northwest the main square joins the smaller Piazzetta Reale, which houses Palazzo Chiablese, the Royal Palace of Turin, and pedestrian passage towards San Giovanni square and the. The square is located 239 meters above sea level.