San Luigi square in the Posillipo district of Naples
Piazza San Luigi is located in the hillside district of Posillipo, in the western area of the city of Naples, characterized by a territorial conformation on multiple altimetric levels. The site features an urban layout developed between the nineteenth and twentieth centuries, with residential buildings and hotel structures built in direct relation to the morphology of the tuffaceous coast. The presence of rock formations is evidenced by natural cavities and road tunnels that cross the Neapolitan yellow tuff bank. The Posillipo district occupies the homonymous hill, which extends between the Mergellina borough and Capo Posillipo, including several historic hamlets such as Gaiola and Marechiaro. The etymology of the toponym derives from the Greek "Pausílypon", translatable as "respite from pain", a denomination attributed in Roman times. The geological conformation and exposure toward the Gulf have determined the development of a particular urban fabric, with streets following contour lines and road accesses connecting different altimetric levels. From the promontory extends the view toward the Campanian archipelago, where the profile of the island of Capri emerges, located approximately thirty kilometers from the Neapolitan coast.