Aosta is the capital and largest city of the Aosta Valley, Italy's smallest region, located in the Alps approximately 110 kilometers north-northwest of Turin. With a population of 33,127, the city sits at the confluence of the Buthier and Dora Baltea rivers and near the entrances to the Mont Blanc and Great St Bernard tunnels, making it a strategic gateway between Italy, France, and Switzerland.
Originally settled by the Salassi people, Aosta was founded as the Roman town "Augusta Praetoria Salassorum" around 25 BCE by Emperor Augustus following his conquest of the region. The city retains substantial Roman heritage, including the Arch of Augustus, the Praetorian Gate, a Roman Theatre, and a Cryptoporticus (underground gallery). Medieval landmarks include the 11th-century Cathedral and the Early Christian church of San Lorenzo, whose underground section dates to the 5th century.
The Aosta Valley is officially bilingual, with both Italian and French as official languages alongside the Franco-Provençal dialect. The region boasts autonomous status with distinct legislative and administrative powers. Local cuisine reflects its geographical position, blending Italian, Swiss, and French influences through dishes such as fonduta valdostana, carbonade, and specialties like Fontina cheese and Génépi herbal liquor. The city center is accessible on foot and serves as a base for visiting nearby castles and the Fort of Bard, which features five museums and a medieval village.