Catacombs of San Callisto

41.8531°N, 12.5195°EOPEN YEAR-ROUND
The largest of Rome's Christian catacombs, four levels deep along the Appian Way, with tunnels stretching some 16 kilometres.
AlternativeAlternative Tourism

The largest of Rome's Christian catacombs, four levels deep along the Appian Way, with tunnels stretching some 16 kilometres.