The cathedral rises along the east side of the homonymous street, in a small square surrounded by arcades, and incorporates two other religious buildings that arose autonomously from the cathedral: the basilica of Santa Restituta, which houses the oldest baptistery of West, that of San Giovanni in Fonte, and the royal chapel of the Treasury of San Gennaro, which preserves the relics of the patron saint of the city. It is one of the most important and largest churches in the city, both from an artistic point of view, it is in fact the superimposition of several styles ranging from pure Gothic of the fourteenth century to the nineteenth-century neo-Gothic, which from a cultural point of view, hosting in fact three times a year the rite of the dissolution of the blood of San Gennaro.