Quartiere XVII Trieste on Tavola 39, with Villa Chigi and Parco Virgiliano as green spots among a dense lattice of numbered streets.
Source: Old map, public domain
Numbers climb past 230 on the western blocks, where the grid is straight and narrow. In the east, curved streets wind around Villa Chigi near the Aniene and the Monte Sacro border, while the Parioli and Nomentano quartieri are named along the edges.
