A major road junction, here Via Toledo, Via Chiaia and Via San Carlo converge; it is also the main access point to the nearby, and much more famous, Piazza del Plebiscito. Piazza Trieste and Trento took its present name in 1919 in celebration of the Italian victory in the First World War, while the current structure is affected by the urban transformations implemented until the end of the nineteenth century.
Irregularly shaped, on its edge are the Teatro San Carlo, the Royal Palace, the Palace of Cardinal Zapata and the seventeenth-century church of San Ferdinando, incorporated in the same lot of the Galleria Umberto I. In the center of the square is the Fountain of Artichoke, commissioned by Achille Lauro in the fifties of the twentieth century. On the west side, on the ground floor of the Palazzo delle Prefettura, there is the famous Caffè Gambrinus, which still preserves the decoration created by some important artists active between the late nineteenth and early twentieth century, as Gabriele D’Annunzio and Filippo Tommaso Marinetti.