Piazza Castello is arguably the square most loved by the Torinese.
Palazzo Madama, an hybrid of a Roman gate, medieval castle and Baroque palazzo sits in the middle
It is surrounded by portici on 3 sides
and it's home to the Teatro Regio (the Opera house), the Prefettura with a Cristoforo Colombo high-relief
(The superstitious Torinesi like to rub his little finger for good luck )
the Armeria Reale, the Palazzo Reale
and the chiesa di San Lorenzo
You can also see the extravagant dome of the Holy Shroud
A number of roads converge on the square: via Po, via Garibaldi, via Roma (which will take you to Piazza San Carlo and the Porta Nuova railway station)