Alatri

Province: Frosinone · Region: Lazio · Population: 28,609 · Postal code: 03011

Long before the Roman Republic dominated the peninsula, the ancient Hernici people built a formidable stronghold here. Their legacy survives directly in Alatri’s massive pre-Roman acropolis, a striking complex of megalithic walls that continues to anchor the upper town. Walking beneath these colossal stones provides a rare glimpse into early Italic engineering.

Known as Aletrium in Latin, this municipality of nearly 28,600 residents lies within the Frosinone province of Lazio. When visiting, skip the modern commercial zones and proceed straight to the ancient citadel to inspect its mortarless masonry.