 The catacombs lie under the Rione Sanità neighborhood of Naples, sometimes called the "Valley of the Dead".The site is now easily identified by the large church of Madre del Buon Consiglio.Originally, there were three separate cemeteries, dedicated, respectively, to Saint Gaudiosus ("San Gaudioso"), Saint Severus ("San Severo") and St. Januarius ("San Gennaro").