The Contrada di Po, which connects the Roman gate (later become Palazzo Madama) to the bridge over the Po, has existed for a thousand years, when, in 1670, Amedeo di Castellamonte designed it as a porticoed straight street, main road of the great expansion of the city towards the East. The orthogonal lattice of the Roman city is also maintained in the seventeenth-century extensions and the anomaly of the diagonal Po district, such as the New York Broadway, is barely perceived. Even the 4 meters difference in height between Piazza Castello and Piazza Vittorio Veneto - is hardly noticeable thanks to their homogeneous distribution block by block.
A photo of the end of 1800s