One of the most important squares of the city, rich in history and art, the square is close both to the area of the historical center and to the streets direct to the sea of Naples.

Located on the island of Megaride, where according to legend, the dead body of the mermaid Parthenope ran aground. It was here that the Cumans landed in the 6th century BC to found the first nucleus of the future city. It was here that Lucullus, returning from Asia with immense wealth, had a sumptuous residence built for him which extended as far as Mount Echia; here in the fifth century BC, the cenobite monks who built some monasteries lived; here landed and found refuge S. Patrizia having fled his uncle and emperor of the East; here the armies of Duke Sergio expelled the monks to set up a military garrison; here Roger the Norman assembled his army; here too, finally, Robert d’Anjou erected a real castle by giving it strong square towers and which today still force respect. The castle had even the role of prison, there were imprisoned Romulus Augustine, last emperor of the West; many Jacobins, Carbonari and liberals among whom Francesco de Sanctis.

The history of the Royal Palace (Palazzo Reale) of Naples dates back to the early seventeenth century under the Spanish occupation of the city, who decided to build a modern palace, large and well decorated. The monument was designed by Domenico Fontaine (1543 – 1607), on a model of Renaissance style, then enlarged and decorated in the eighteenth and nineteenth centuries. For three centuries, from 1600 to 1946, the Royal Palace was the seat of monarchical power in Naples and southern Italy, first inhabited by the Spaniards, then the Austrians, then by the Bourbons, and finally by the House of Savoy . The house of Savoy, at the head of the newly built Italian state, add on the facade of the Palace 8 statues representing the founders or the most illustrious sovereigns of the dynasties who reigned over Naples. From left to right: Roger the Norman, Frederick II of Svevia, Charles of Anjou, Alphonse of Aragon, Charles V, Charles III of Bourbon, Murat and Victor Emmanuel II.

In the heart of the inner city, in piazza del Gesú, there is the breathtaking church of Gesu' Nuovo which is an exquisite example of the Baroque, from the unique façade faced with diamond-shaped ashlars to the marvellous interiors in marble. It was originally a palace built in 1470 for Roberto Sanseverino, Prince of Salerno and became the centre of Neapolitan life. The façade is unique with its diamond shaped ashlars and its spectacular interiors made of marble. In the 1580s it was converted into a church by the Jesuits. The grandiose plan included a Greek cross church with its longitudinal arm slightly elongated, a great dome in the middle and four minor lateral ones. The interior is decorated with typical features of the Baroque style, like the elegant coloured marble creating illusions of vases with flowers, festoons, and masks embellished the architrave. Here worked the most important Neapolitan master painters, like Francesco Solimena, who frescoed the inner façade in 1725

It was the main decumanus or Decumanus Maggiore — that is, the main east-west street—of the ancient Greek and then Roman city of Neapolis, paralleled to the south by the lower decumanus (Decumano Inferiore, now called Spaccanapoli) and to the north by the upper decumanus (Decumano Superiore) (now via Anticaglia and Via della Sapienza). The three decumani were (and still are) intersected by numerous north-south cross-streets called cardini, together forming the grid of the ancient city. The modern streets/alleys that overlie and follow the ancient grid of these ancient streets. The street runs from the church of San Pietro a Maiella and adjacent Naples Music Conservatory at the west end of the old city for about three-quarters of a mile, passing the central cross-road at via San Gregorio Armeno, then crossing via Duomo near the Cathedral of Naples and ending at what was, until quite recently, the main Naples courthouse (Italian: Tribunale).

The French writer Stendhal had a profound love for Naples, and in the first half of the eighteenth century he called Via Toledo "the most populous and happy street in the world". And as you'll see, it has remained that way up to today, with its animated stores that make it the heart of Neapolitan shopping, but also its numerous civil and religious buildings. So begin cycling down this main road of the city, whose eastern limit is the popular and genuine "Spanish Quarter" that was built in the first half of the sixteenth century by Viceroy Pedro Álvarez de Toledo. The quarter stands where the city's original Aragonese-era western wall once stood, which essentially marked the border of the Greek-Roman city.

The 3 “Decumani” are the main roads that traverse the city from east to west, crossed by the “Cardini” from north to south. These words come from Latin, but the orthogonal city map was made by Greek, who founded the ancient “Neapolis”: they named those streets respectively “plateiai” and “stenopoi”.

A beautiful waterfront to see but also rich in history and culture, Lungomare Caracciolo takes its name from Via Caracciolo, the street is bordered by the sea of the city of Naples. A long and wide way to find important points of interest such as the Villa Comunale and the Riviera di Chiaia area.Lungomare Caracciolo extends along most of the coast of the city of Naples, crosses many areas: Via Santa Lucia where there is the famous church of Santa Lucia, the area of Borgo Marinaio with its very characteristic little port full of local and the Castel dell'Ovo, the area of ​​the Riviera di Chiaia known for shopping and nightlife, the end is in the ascent of Posillipo that leads to a high part of the city. The name of the Lungomare is dedicated to Admiral Francesco Caracciolo, even if someone call it Mergellina or in recent years 'Lungomare Liberato', a historic hero of the Neapolitan Republic who was executed right in the waters of the nearby sea on his boat.