it is the main square of Turin and the historic center of the city. At its center is Palazzo Madama and Casaforte degli Acaja. The perimeter is bordered by arcades built in different periods. In addition, you can see the Palazzo della Prefettura-Armeria Reale, the Teatro Regio, the Royal Church of San Lorenzo and the smaller Piazzetta Reale.

it is the first and most important Savoy residence in Piedmont, theater of politics for three centuries. It is located in the Piazzetta Reale. It represents the heart of the Savoy court, a symbol of the dynasty's power and is an integral part of the assets declared World Heritage Site by UNESCO.