They have been created as part of a funerary complex, and during the centuries they became places of worship for pilgrims.
The Catacombs of St. Sebastian, where the Saint's grave was set, go down up to four levels, and are on the Appian Way, for more info: www.catacombe.org
The  Catacombs of St. Domitilla go down to four levels and occupy fifteen hectares, please for more info www.donitilla.info
Finally, the Catacoms of St. Callixtus, are part of a huge area and until now just twenty  kilometers are known, go to www.catacome.roma.it
You can book your Rome Tour and visit the Eternal City on board of our vehicles with our professional drivers.