Free Walking Tour Aosta: Roman Arch to Sant'Orso Cloister

Start at a Roman arch, pass through a Roman city gate and finish among the medieval capitals of the Sant'Orso cloister, all within 2.7 km.

8 Stops 2.7 km ~38 min walking
Route map for the Aosta walking tour
Stop 1 of 8
750 m·9 min
Arch of Augustus
Head east up Via Sant'Anselmo toward the Porta Praetoria
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Aosta on Foot: Eight Stops in 2.7 km

Eight stops from the Arch of Augustus to the Collegiate Church of Sant'Orso: 2.7 km with 38 minutes of pure walking. With the interiors that reward a visit, plan on about three and three quarter hours.

The arch, the gate, the main square, the cathedral and the church of Sant'Orso are free. The theatre, museum and cryptoporticus share one combined ticket; the cloister has a small separate fee. Route, map and GPS navigation in your browser are free; the optional AI Tour Guide leads the walk as a conversation.

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This short shows highlights of the route. All 8 stops follow below.

The Route

Aosta Walking Map: Arch, Gate, Theatre and Sant'Orso

8 stops 2.7 km 38 min walking
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The 8 stops along this route

  1. Arch of Augustus in Aosta, stop 1 on the self-guided walking tour
    1Arch of Augustus
  2. Porta Praetoria in Aosta, stop 2 on the self-guided walking tour
    2Porta Praetoria
  3. Roman Theatre in Aosta, stop 3 on the self-guided walking tour
    3Roman Theatre
  4. Aosta Cathedral, stop 4 on the self-guided walking tour
    4Aosta Cathedral
  5. Regional Archaeological Museum in Aosta, stop 5 on the self-guided walking tour
    5Regional Archaeological Museum
  6. Roman Forum Cryptoporticus in Aosta, stop 6 on the self-guided walking tour
    6Roman Forum Cryptoporticus
  7. Piazza Émile Chanoux in Aosta, stop 7 on the self-guided walking tour
    7Piazza Émile Chanoux
  8. Collegiate Church of Sant'Orso in Aosta, stop 8 on the self-guided walking tour
    8Collegiate Church of Sant'Orso
  9. That's the full route.

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Through Aosta Stop by Stop, from Roman Gates to a Medieval Cloister

  1. 1

    Arch of Augustus

    Arch of Augustus in Aosta, stop 1 on the self-guided walking tour

    The walk begins at the Arch of Augustus, Arco d'Augusto in Italian and Arc d'Auguste in French, a free-standing monument you can walk up to and around at any hour without paying anything. Take a few minutes here: it is the first sign that Aosta was a Roman foundation, and the emperor whose name the arch carries is the same one in the name of the Roman town, Augusta Prætoria Salassorum.

    The French name on the plaques is no accident either. You will meet it again at almost every stop, because Aosta's places have long carried both languages side by side.

    From the arch it is 390 m and about 6 minutes to Porta Praetoria, the gate that let travellers into the Roman town.

    Local name
    Arco d'Augusto
    Hours
    Freely accessible, no fixed opening hours
    Price
    Free
  2. 2

    Porta Praetoria

    Porta Praetoria in Aosta, stop 2 on the self-guided walking tour

    Porta Praetoria, Porta Pretoria locally and Porte Prétorienne in French, was the eastern entrance to Augusta Prætoria Salassorum. Where the arch stood outside the town, this gate marked the moment you were inside it, and you still pass through the same opening on foot today. It is open at all hours and free.

    Stand inside the gate for a moment and look along the street ahead: the road leading in follows the line of the old Roman main axis, which you will meet again at the main square.

    The Roman Theatre is only 130 m on, about 2 minutes away, the shortest leg of the walk.

    Local name
    Porta Pretoria
    Hours
    Freely accessible, no fixed opening hours
    Price
    Free
  3. 3

    Roman Theatre

    Roman Theatre in Aosta, stop 3 on the self-guided walking tour

    The Roman Theatre is the first ticketed stop and the one where paying pays off first. This is where the Roman town gathered for performances, and walking into the remains gives you a sense of scale that the gate alone cannot.

    Entry is on the combined ticket you buy here, which also covers the museum and the cryptoporticus later on the walk, so the decision is really about all three. If Roman Aosta is why you came, buy it. If you only have an hour, the theatre alone is the one to choose.

    From here the longest leg of the route follows: 750 m and about 10 minutes to the cathedral. On the way you pass the Cathedral Treasury Museum.

    Local name
    Teatro romano di Aosta
    Hours
    Summer (Apr–Sep): daily 9:00–19:00 | winter (Oct–March): daily 10:00–13:00, 14:00–17:00. Closed 25.12 and 1.1
    Price
    10 EUR combined ticket (Roman Theatre, Forensic Cryptoporticus, Early Christian Basilica of San Lorenzo, Regional Archaeological Museum, MegaMuseo; one entry each, valid for six months); ages 19–25 3 EUR; under 18 free
  4. 4

    Aosta Cathedral

    Aosta Cathedral, stop 4 on the self-guided walking tour

    Aosta Cathedral, dedicated to Santa Maria Assunta and called Notre-Dame de l'Assomption in French, is the seat of the local diocese. Together with Sant'Orso, where this walk ends, it is the most important witness to the history of sacred art in the Aosta Valley, and it has been an Italian national monument since 1940.

    Its history runs back more than a thousand years, and you read it in the building itself: generation after generation altered it in a different architectural language, and the artworks kept inside add further layers. That makes it a church to walk through slowly rather than glance into. Entry is free.

    Timing matters here more than anywhere else on the route: arrive in the morning and you will not stand in front of a locked door.

    The Regional Archaeological Museum is 290 m away, about 4 minutes on foot.

    Hours
    Mon–Sat: 06:30–12:00, 15:00–19:00 | Sun: 07:00–12:00, 15:00–19:00
    Price
    Free
  5. 5

    Regional Archaeological Museum

    Regional Archaeological Museum in Aosta, stop 5 on the self-guided walking tour

    The Regional Archaeological Museum of the Aosta Valley, known as MAR, is where the finds of this region are gathered. After the gate and the theatre in the open air, this is the place to see the objects behind the ruins up close.

    It is the second site on the combined ticket. With the ticket in hand, give it about 45 minutes; without it, this is the stop to leave out if your time is short, since the cryptoporticus and the theatre show Roman Aosta where it actually stood.

    The next leg is 460 m, about 6 minutes, to the Roman forum.

    Local name
    Museo archeologico regionale della Valle d'Aosta
    Hours
    Summer (Apr–Sep): daily 9:00–19:00 | winter (Oct–March): daily 10:00–13:00, 14:00–18:00. Closed 25.12 and 1.1
    Price
    10 EUR combined ticket (Roman Theatre, Forensic Cryptoporticus, Early Christian Basilica of San Lorenzo, Regional Archaeological Museum, MegaMuseo; one entry each, valid for six months); ages 19–25 3 EUR; under 18 free
  6. 6

    Roman Forum Cryptoporticus

    Roman Forum Cryptoporticus in Aosta, stop 6 on the self-guided walking tour

    The Roman Forum Cryptoporticus, Criptoportico forense in Italian, is the quietest stop on the walk and the easiest to underestimate. A cryptoporticus is a covered corridor sunk partly into the ground, and this one formed the underground level of the forum, the civic heart of Roman Aosta, with the modern town built over it.

    It is a ticketed site, the third and last one on your combined ticket. The theatre announces itself and a museum is a museum, but a sunken forum corridor is something you only find because a route put you on the street right over it. If you have the ticket, do not skip it.

    From here it is 250 m, about 3 minutes, into the main square, where nothing costs money until the cloister at the very end.

    Local name
    Criptoportico forense
    Hours
    April–September: 09:00–19:00; October–March: 10:00–13:00 and 14:00–17:00. Closed 25 December and 1 January.
    Price
    10 EUR combined ticket (Roman Theatre, Forensic Cryptoporticus, Early Christian Basilica of San Lorenzo, Regional Archaeological Museum, MegaMuseo; one entry each, valid for six months); ages 19–25 3 EUR; under 18 free
  7. 7

    Piazza Émile Chanoux

    Piazza Émile Chanoux in Aosta, stop 7 on the self-guided walking tour

    Piazza Émile Chanoux is Aosta's main square, a long rectangle at the centre of town and free to cross at any hour. Two of the streets leading off it, Via Jean-Baptiste de Tillier and Via Porta Praetoria, run along the course of the ancient decumanus maximus, the Roman main street you entered at the gate.

    The name tells a newer story. The square used to honour Carlo Alberto of Savoy and was then rededicated to Émile Chanoux, a notary and partisan who coordinated the Aosta committee of the National Liberation Committee. Here the Roman grid and twentieth century history meet in one place.

    The last leg is 470 m, about 6 minutes, to the Collegiate Church of Sant'Orso.

    Hours
    Freely accessible, no fixed opening hours
    Price
    Free
  8. 8

    Collegiate Church of Sant'Orso

    Collegiate Church of Sant'Orso in Aosta, stop 8 on the self-guided walking tour

    The Collegiate Church of Sant'Orso, dedicated to Saints Peter and Orso, is the cathedral's partner in the story of sacred art in the Aosta Valley, and a fitting place to end. The church itself is free to enter.

    Two things set it apart. Between the roof and the ceiling of the nave, ancient Ottonian frescoes have survived, and the cloister is known for its medieval capitals. That cloister is the reason to pay the small entry fee here: if you enjoy carved detail, it is the best value entry of the day, and it rounds off a walk that began with Roman stone.

    The route ends here. If you want to return to the Arch of Augustus, the GPS navigation in your browser leads you back.

    Local name
    Collegiata di Sant'Orso
    Hours
    Church: daily 9:00–18:00 (year-round). Cloister: Apr–Sep 9:00–19:00 | Oct-2 Nov 9:00–18:00 | 3 Nov–Feb 9:00–17:00 | March 9:00–18:00. Tours daily at 11:00 and 16:00 (Apr-2 Nov) resp. 15:00 (3 Nov–March). Closed 25.12.
    Price
    Church: free. Cloister (Chiostro): 2 EUR adults / 1 EUR children (self-guided); 10 EUR adults / 5 EUR children museum pass (tour); under 6 free.
Walking tour route map of Aosta Route loaded
Arch of AugustusPorta PraetoriaRoman TheatreAosta Cathedral+4
All 8 stops are already on the map.
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AI Tour Guide

Ready to Walk Aosta? Take the Route with a Guide Talking You Through It

Press start wherever you are, even hundreds of kilometres from Aosta, and the guide begins telling its stories right away. In the city, pick any of the 8 stops to start from: it leads you there, then talks with you the whole route, asking, listening, remembering, and shaping the tour around your answers.

8stops 2.7km 38 minwalking 13languages
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Shorter Ways to Walk Aosta

You can join the route at any stop, and the order here is the recommended one. If the full walk with every interior is too much, these cuts hold together well.

Roman Aosta in an hour

Stops: 1, 2, 3

For a short visit or a first look: the arch, the city gate and the theatre. That is 520 m and 8 minutes on foot, and the only entry is the theatre on the combined ticket. With a proper look inside the theatre you are done in a little over an hour.

Free outside, all eight stops

Stops: 1, 2, 3, 4, 5, 6, 7, 8

For a tight budget: walk the whole 2.7 km route in 38 minutes of walking, see the theatre, museum and cryptoporticus from the street, and go inside only the cathedral and the church of Sant'Orso, both free. Count on about an hour and a half.

Cathedral to Sant'Orso

Stops: 4, 5, 6, 7, 8

For a second half day, or if you already saw the Roman gates: 1,470 m and 19 minutes of walking from the cathedral to Sant'Orso. Entries are the museum and the cryptoporticus on the combined ticket, plus the cloister if you want it.

How Long the Aosta Walk Takes, With and Without the Ticketed Sites

Pure walking time is 38 minutes over 2.7 km, the longest leg being the 750 m from the Roman Theatre to Aosta Cathedral. The real time is set by the interiors: about 40 minutes in the theatre, 20 in the cathedral, 45 in the museum, 20 in the cryptoporticus and half an hour at Sant'Orso, plus a few minutes at each open-air stop. That adds up to roughly three and three quarter hours.

Start at the Arch of Augustus at 9:30 and the timing works all year, with the cathedral and the Roman sites all visited in the morning: you reach the theatre at about 9:58, the cathedral around 10:48 and the cryptoporticus around 12:03. You arrive at Sant'Orso around 12:42 and finish shortly after 13:10.

The Roman trio takes a little over an hour, the free outdoor version about an hour and a half, and the stretch from the cathedral to Sant'Orso around two hours with the museum, the cryptoporticus and the cloister.

Before You Set Out in Aosta

  • Start and finish: The recommended start is the Arch of Augustus and the walk ends at the Collegiate Church of Sant'Orso, but you can begin at any stop. The route is a one-way line; the GPS navigation in your browser takes you back to the start if you want.
  • Best time: Go in the morning, so you reach the cathedral and the ticketed Roman sites well before midday.
  • Costs: The arch, the gate, the square and both churches are free. The theatre, the museum and the cryptoporticus share a combined ticket, with reduced entry for young adults and free entry for minors. The Sant'Orso cloister charges a small fee, with a lower price for children and free entry for the youngest.
Walking tour route map of Aosta
AI Tour Guide

A Guide for Aosta Whenever You Want One

Press start and a voice AI Tour Guide takes it from here: leading the route through Aosta, telling the stories, and turning your walk into a real back-and-forth conversation. No app or download is needed; it runs in your browser.

8stops 2.7km 38 minwalking 13languages
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What the AI Tour Guide Adds in Aosta

Aosta's stops are short on signage and long on layers: a Roman town, a medieval church town and a modern main square sit on top of each other. The AI Tour Guide leads you through those layers as a conversation, greets you at the arch, tells the stories of each place, asks what you want more of and remembers it, so a Roman history fan hears different things at the cryptoporticus than someone who came for the frescoes of Sant'Orso. If you wonder who Émile Chanoux was beyond his name on the square, or how a Roman theatre audience was seated, just interrupt and ask. You start with 100 free credits; after that you choose this tour all-inclusive for €19.99 with no time limit, or €5 per hour.

A Real Conversation A voice AI Tour Guide greets you, leads the whole route, and tells the stories and facts as you walk, asking what you want to see and keeping a real conversation going. Not a recording you press play on.
Map Navigation Follow the route on the map and walk at your own pace. You choose where to start and when to move to the next stop.
Ask Anything Curious about a building you pass? Ask your AI Tour Guide on the spot and the conversation carries on.
13 Languages Switch language anytime. No separate tour needed.
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Common Questions About Walking Aosta

What else does the combined ticket cover?

Besides the three sites on this route it includes the Early Christian Basilica of San Lorenzo and the MegaMuseo. Each site allows one entry and the ticket stays valid for six months, so you can save the extra two for another day.

Can I join a guided visit of the Sant'Orso cloister?

Yes. Guided tours run twice a day all year round. They require a museum pass, which costs more than the self-guided cloister visit, with a reduced pass for children.

Is there another walking tour I can combine with Aosta?

Across the mountains, Chamonix is 40 km away and Zermatt 46 km. On the Italian side, Turin is the nearest big city at 80 km, with its own free route.

Does the cloister of Sant'Orso keep the same hours all year?

No. It opens every day, but its closing time shifts with the season and comes earlier in the darker months. If you follow the route in the morning, you reach it in good time. The church itself is open daily as well.

Is the tour really free?

Yes. The whole tour is free: the route, the interactive map and the navigation cost you nothing. Only the voice AI Tour Guide is optional and paid: you test it with 100 free credits, then you pay either €5 per hour or €19.99 for this whole tour, with no time limit. Admission to 3 of the 8 stops is not included: Roman Theatre, Regional Archaeological Museum and Roman Forum Cryptoporticus charge their own entry fees.

Do I need to download an app?

No. Everything runs in your phone browser. Open the route and start walking, no download and no sign-up required.

Do I need to book the walking tour in advance?

No booking needed. This self-guided tour is available anytime. Open the route in your browser and start walking. The AI Tour Guide works instantly, no app, no reservation required.

What languages is the AI Tour Guide available in?

The AI Tour Guide speaks 13 languages, so you take the tour in your own language and can switch at any time.

Can I skip stops or change the route?

Yes. Skip any stop, spend extra time at places you like, or start the route from any point. It is your walk, you set the pace.
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