Next to the Cathedral of Naples, under the arcades, the Museum of the Treasure of San Gennaro exposes one of the most important artistic and cultural heritages in the world comparable, if not superior, to that of the Queen of England crown. Invention, popular devotion, religiosity, spectacle: all this and more includes the exhibition of the Museum of the Treasure of San Gennaro, which today can be admired intact thanks to the meritorious work of the Deputation, the lay institution that represents the City of Naples, who commissioned, selected, kept and preserved intact over the centuries. Extraordinary gifts of inestimable value of sovereign popes, royalty, celebrities and ordinary people are interspersed with masterpieces commissioned by the Deputation to beautify and enrich the Neapolitan Chapel dedicated to their patron saint and today document the extraordinary ability to sculptors, silversmiths and Neapolitan goldsmiths who have been able to combine technical knowledge and creativity.

Among them the legendary Mitra jeweled with 3964 precious stones made in 1713 by goldsmith Matteo Treglia and considered one of the most precious jewels in the world and necklace made of 250 years (from the year 1679 until 1929) and consists of joys donated by more important European rulers. An itinerary, then, that winds through marvelous and unique masterpieces and ancient beautiful Sacristies seventeenth century Chapel of the Treasure of San Gennaro never open to the public for four centuries until now.