Published July 16, 2026 • 10 min read
Aosta is one of Italy's most underrated cities, combining exceptionally well-preserved Roman monuments with Alpine scenery, medieval architecture, and easy access to some of the Alps' best ski resorts and hiking trails. The city is compact and walkable — you can see the main Roman sites in a morning and be on the slopes of Pila by afternoon. Here's our complete guide to the best things to do in Aosta.
The most iconic Roman monument in Aosta. Built in the late 1st century BC, the theatre could seat 3,000-4,000 spectators. Its most striking feature is the southern facade, which rises 22 metres into the air — one of the best-preserved Roman theatre walls anywhere in the ancient world. The theatre was originally covered by a wooden roof, but only the stone structure survives. Today, summer performances are held here, from classical theatre to contemporary concerts. The adjacent cryptoporticus — a network of underground galleries used to support the Roman forum — is included in the same ticket (€5 combined). Allow 45 minutes for the theatre and cryptoporticus.
Built in 25 BC to celebrate the Roman victory over the local Salassi tribe. The arch marks the eastern entrance to the Roman city of Augusta Praetoria. It's remarkably well preserved — the inscription on both sides still clearly reads "IMP. CAESAR. AUGUSTUS. DIVI. FILIUS" (Emperor Caesar Augustus, Son of the Divine). The arch stands at the end of Via Carlo Alberto, the main street of Aosta. It's free to visit and best photographed in the late afternoon when the setting sun illuminates the stone. Continue walking along the Roman walls to the Praetorian Gate for the full Roman circuit.
The Sant'Orso complex is one of Italy's finest Romanesque ensembles. The church, dedicated to Saint Ursus, dates from the 11th-12th centuries and features a beautiful bell tower and a crypt containing the saint's relics. But the highlight is the cloister — 40 marble capitals carved in the 12th century, each depicting scenes from the Bible, the lives of the saints, and medieval daily life. The carving is extraordinarily detailed and expressive, comparable to the best Romanesque cloisters in Europe. Next to the church, the Priory museum contains a collection of medieval sacred art. Entry to the church and cloister is free. Allow 30-45 minutes. The Sant'Orso Fair (January 30-31) is held in the square outside.
The Cathedral of Santa Maria Assunta blends Romanesque, Gothic, and Baroque elements. The 12th-century crypt is the oldest surviving part. The treasury museum (€3) houses a collection of medieval silver, illuminated manuscripts, and reliquaries. The main chapel's frescoes by Renaissance painter Giacomino da Ivrea are outstanding. The cathedral is free to enter. Allow 30 minutes.
The Porta Praetoria is the ancient eastern gate of the Roman camp, with three passageways flanked by 16-sided towers. It marks the entrance to the decumanus maximus, the main east-west street. The Roman walls, built in the 1st century BC, enclose the old city in a 2.5 km circuit. Sections have been incorporated into medieval and modern buildings, but the route of the walls is clearly visible. Free to walk along the walls. Allow 30-45 minutes for the full circuit.
The Pila cable car rises from Aosta's southern edge (10-minute walk from the centre) to 1,800m in 18 minutes. The views during the ascent are spectacular. In winter, Pila offers 70 km of pistes for all levels — mostly intermediate with excellent beginner areas. In summer, the cable car gives access to mountain biking trails and hiking paths. The mountain restaurant at the top station serves excellent local food. Return cable car €18. Ski pass €38/day.
Housed in a former 19th-century convent near the cathedral, this museum displays artefacts from Aosta's Roman, Celtic, and medieval history. Highlights include Roman inscriptions and milestones from the Alpine passes, the bronze Testa di Augusto (Head of Augustus), and a reconstruction of a Celtic tomb. The museum is well laid out with English explanations. Entry €5. Allow 1 hour.
Fénis Castle is 15 km east of Aosta (20 minutes by bus from Aosta bus station). Built in the 14th century by the Challant family, it's one of Italy's most photographed castles. The double ring of walls, five towers, courtyard with external staircase, and 15th-century frescoes make it the quintessential medieval castle. The kitchen is remarkably well preserved with original fireplaces. Entry €7. Allow 1-1.5 hours. Combined tickets with Bard Fort are available.
Bard Fort is a massive 19th-century fortress 15 km east of Aosta that controlled the entire valley. After a spectacular restoration, it now houses the Museum of the Alps (covering Alpine history, mountaineering, and geology), a Museum of Fortifications, and a children's interactive space. The panoramic terrace offers stunning views up and down the valley. The fortress was used as a filming location for Avengers: Age of Ultron. Entry €10. Allow 2-3 hours. Combined ticket with Fénis Castle available (€14).
This underground gallery system supported the Roman forum — the political and commercial heart of Augusta Praetoria. The vaulted corridors run for over 80 metres in three parallel sections, lit by narrow windows. Walking through them gives a real sense of the scale of the original Roman city. The cryptoporticus is included with the Roman Theatre ticket (€5). Allow 20-30 minutes.
One Day in Aosta: Morning — Roman Theatre + Cryptoporticus + Arch of Augustus + Praetorian Gate. Lunch at Vecchio Ristoro (try the fonduta). Afternoon — Sant'Orso cloister + Cathedral. Evening — Pila cable car for sunset views, then dinner at Osteria dell'Oca.
Two Days in Aosta: Day 1 as above. Day 2 — Morning: Fénis Castle (bus from Aosta station). Lunch in Fénis village. Afternoon: Bard Fort. Evening: Wine tasting at La Cave du Palais.
Three Days (with Skiing): Days 1-2 as above. Day 3 — Full day skiing at Pila (cable car from Aosta). Skip the afternoon hike and enjoy a long lunch at the mountain restaurant.
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