Aosta is the capital of the Valle d'Aosta region, which is Italy's smallest and least populous region. Nestled in the Alps, near the borders with France and Switzerland, it's known for its mountainous landscapes, medieval monuments, and as a gateway to the famous ski resorts of the area. The region is also renowned for its ancient Roman ruins, including the impressive Arch of Augustus and the Theatre of Aosta, which speak to the city's historical significance. Valle d'Aosta's unique blend of Italian and French influences is reflected in its language, cuisine, and culture, making it a fascinating destination for travelers.