It is located halfway between Rome and Naples , and lies on the Roman - era Appian Way .
Formia is a city and comune in the province of Latina , on the Mediterranean coast of Lazio ( Italy ) .
Formia is located halfway between Rome and Naples , and lies on the Roman - era Appian Way .
Formia is a city and comune in the province of Latina , on the Mediterranean coast of Lazio ( Italy ) .