these are the catacombs of san gaudioso and san gennaro, a burial place dating back to the 2nd century. miryam cuomo of the la paranza cooperative is a tour guide in this neapolitan underworld. it was only in 2008 that young people like her began clearing the catacombs of garbage and rubble. today, more than one hundred thousand visitors are enchanted by them each year. >> people don't expect this. they think it will be a much more cramped space. but this is a triumph of tufa limestone, a thing of beauty. reporter: underneath the skulls in the walls, the deceased are depicted in artful frescos. the catacombs of san gaudioso were a burial place for the clergy and upper classes in the 17th century. soal status is revealed through garments and tools. the catacombs are an asset to those living above. this part of the old town used to be one of naples' poorest areas suffering from crime, unemployment and the mafia. but tourists have brought change. >> they come for pizza, coffee or something sweet. they're saying good things about our neighborhood now. >> lots of tourists stop to look at al

these are the catacombs of san gaudioso and san gennaro, a burial place dating back to the 2nd century. miryam cuomo of the la paranza cooperative is a tour guide in this neapolitan underworld. it was only in 2008 that young people like her began clearing the catacombs of garbage and rubble. today, more than one hundred thousand visitors are enchanted by them each year. >> people don't expect this. they think it will be a much more cramped space. but this is a triumph of tufa limestone, a thing of beauty. reporter: underneath the skulls in the walls, the deceased are depicted in artful frescos. the catacombs of san gaudioso were a burial place for the clergy and upper classes in the 17th century. soal status is revealed through garments and tools. the catacombs are an asset to those living above. this part of the old town used to be one of naples' poorest areas suffering from crime, unemployment and the mafia. but tourists have brought change. >> they come for pizza, coffee or something sweet. they're saying good things about our neighborhood now. >> lots of tourists stop to look at al