Catacombs built during the persecution of Christians of the Roman Empire of Syracuse, Neapolis Archaeological Park, UNESCO World Heritage Site, Syracuse, Sicily, Italy, Mediterranean, Europe

catacombs syracuse burial site ancient site sicily mediterranean archaeological history subterranean cultural heritage europe ancient architecture exploration tourism ruins historical early christians sacred spaces limestone caves structures excavated memorial artifacts archaeology geological features landscape preservation heritage site catacomb architecture italy religious history remains heritage tourism sacred sites ancient culture heritage conservation historical site spirituality ancient civilizations built during persecution christians roman empire