Siena Cathedral Tickets: OPA SI Pass, Gate of Heaven and the Marble Floor Explained

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Many travellers come to Siena for the Piazza del Campo and leave thinking they have seen the city. The real treasure is a few minutes’ walk uphill: the Cathedral of Santa Maria Assunta, a striped marble Gothic cathedral with one of the most extraordinary interiors in Italy. Its inlaid marble floor, its frescoed library, Nicola Pisano’s pulpit and the view from the unfinished facade of a cathedral that was never built make it worth half a day on its own.

The ticket system, however, is confusing. There are several passes, prices change when the famous floor is uncovered, and one of the best experiences, the walk across the roof, is limited to small groups. This guide explains which Siena Cathedral ticket to choose, what each one includes and how to plan your visit.

Siena Cathedral Tickets Compared

Ticket	Includes	Approx. price	Best for
Cathedral only	Cathedral and Piccolomini Library	€7 to €10, higher when the floor is uncovered	A quick visit
OPA SI Pass	Cathedral, library, crypt, Baptistery, museum and the Facciatone panorama	€16 to €18	Most visitors
Porta del Cielo	OPA SI Pass plus a guided walk on the roof	Around €20 to €23	The full experience
Guided tour	Skip-the-line entry with a guide	Varies	First-time visitors
Early access tour	Entry before opening with the key keeper	Varies	Photographers, art lovers

Official prices as published for 2026; passes are generally valid for three days. Check exact inclusions when you book.

The OPA SI Pass: Our Recommendation

The OPA SI Pass, named after the Opera della Metropolitana that runs the complex, covers everything worth seeing except the roof. For most visitors it is the right choice: the extra cost over a cathedral-only ticket is small, and the museum and the panorama are highlights in their own right.

• The Cathedral: black and white marble columns, a coffered blue and gold ceiling, Nicola Pisano’s carved pulpit and Donatello’s bronze of St John the Baptist.
• The Piccolomini Library: a small room off the nave, frescoed by Pinturicchio in the early sixteenth century in colours so fresh they look recently painted.
• The Museo dell’Opera: home to Duccio’s Maestà, completed in 1311, one of the founding works of Sienese painting.
• The Facciatone panorama: a climb inside the unfinished facade of the “New Cathedral”, which Siena began building in the fourteenth century and abandoned after the Black Death of 1348. From the top, the whole city and the hills beyond are spread out below you.
• The crypt and the Baptistery: twelfth-century frescoes rediscovered in the crypt, and a baptismal font with bronze panels by Donatello and Ghiberti.

The staircase to the Facciatone is narrow and one-way, so queues form at midday. Go there first thing in the morning or late in the afternoon. Book your OPA SI Pass here.

The Marble Floor: When to See It

The floor of Siena Cathedral is a vast picture book in inlaid marble, made by generations of artists from the fourteenth to the sixteenth centuries, including Domenico Beccafumi. Its scenes include sibyls, Old Testament stories and the Wheel of Fortune. To protect it, most of the floor is covered for much of the year and uncovered only during set periods.

In 2026, the full floor is on view from 27 June to 31 July and from 18 August to 15 November. During these weeks, ticket prices are slightly higher and the cathedral is busier, but it is unquestionably the best time to visit. If your trip falls outside these dates, a few panels remain visible, and the rest of the cathedral is still magnificent.

The Gate of Heaven: Walking on the Roof

The Porta del Cielo, or Gate of Heaven, takes small guided groups up spiral staircases into the roof spaces and along walkways high above the nave. You look down into the cathedral from the level of the windows and out over the city from the terraces. Groups are limited to around 18 people, and the walk lasts about 25 minutes, so time slots fill up quickly in season. The narrow stairs are not suitable for anyone with vertigo or limited mobility.

Guided Tours and Early Access

Siena’s cathedral is dense with symbolism and history, and a guide makes a real difference. The skip-the-line guided tour focuses on the cathedral itself, while the cathedral visit with city walking tour adds the Campo, the medieval streets and the stories of the contrade, Siena’s seventeen neighbourhoods. For a quieter, more exclusive experience, the early access tour with the key keeper lets you see the cathedral before the doors open to the public. There is also a cathedral ticket with Palazzo delle Papesse, the restored Renaissance palace that now hosts art exhibitions.

Beyond the Cathedral

Palazzo Pubblico and the Civic Museum: Siena’s medieval town hall on the Campo holds Ambrogio Lorenzetti’s Allegory of Good and Bad Government, one of the great political paintings of the Middle Ages, and Simone Martini’s Maestà. Book a Civic Museum ticket for the palace. The neighbouring Torre del Mangia, at around 88 metres, rewards about 400 steps with the best view in Siena; visits are in small numbers, so go early.

Santa Maria della Scala: opposite the cathedral, one of Europe’s oldest hospitals, now a museum with a remarkable frescoed pilgrims’ hall. The combined cathedral, Civic Museum and Santa Maria della Scala ticket covers all three main sights.

A Perfect Day in Siena

• 9:30: the Facciatone panorama before the queues, then the Museo dell’Opera.
• 11:00: the cathedral, Piccolomini Library, crypt and Baptistery.
• 13:00: lunch in a side street off the Campo; pici pasta and a glass of Chianti Classico.
• 15:00: the Civic Museum and, if your legs allow, the Torre del Mangia.
• 17:30: an aperitivo on the Campo as the brick turns rose in the evening light.

Our guide to Siena and its UNESCO-listed centre covers the history, the Palio and where to stay.

Getting to Siena

From Florence, the most convenient public transport is the bus, which takes around 75 to 90 minutes and arrives close to the centre; the train takes a similar time but stops in the valley below the old town. The historic centre is closed to traffic, so if you drive, park outside the walls, for example at the Santa Caterina or Il Duomo car parks, and walk or use the escalators up into the city. Localrent lists hire cars from local agencies if you want to continue into the Chianti hills.

For a comfortable day with no logistics, a private driver from Florence can combine Siena with San Gimignano or a winery. There is also a combined ticket for San Gimignano’s Duomo and Siena Cathedral.

Combine Siena with Tuscan Wine

Siena sits between two of Italy’s great wine regions: Chianti Classico to the north, and Montalcino and Montepulciano to the south. Siena wine tastings and tours range from cellar visits in town to half-day trips into the hills, and day trips from Siena cover the Val d’Orcia and its hill towns. Read our guides to Chianti Classico, Montalcino and Montepulciano before you go.

Practical Tips

• Dress code: shoulders and knees should be covered in the cathedral.
• Sundays: the cathedral opens only in the afternoon on Sundays and religious holidays.
• The Palio: on 2 July and 16 August, the city is packed, and access to the Campo and some sights changes. Plan around those dates unless you are coming for the race.
• Luggage: if you are visiting Siena on your way between hotels, leave your bags with Radical Storage.
• Stay connected: e-tickets and time slots arrive by email; an eSIM for Italy keeps you online.

Frequently Asked Questions

Is the OPA SI Pass worth it?

Yes, for most visitors. For a few euros more than the cathedral ticket, it adds the museum with Duccio’s Maestà, the crypt, the Baptistery and the panoramic view from the Facciatone.

When is the Siena Cathedral floor uncovered in 2026?

From 27 June to 31 July and from 18 August to 15 November 2026.

How long do you need for Siena Cathedral?

About an hour for the cathedral and library alone, and two to three hours for everything on the OPA SI Pass.

Can you go on the roof of Siena Cathedral?

Yes, with the Porta del Cielo guided visit, which runs in small groups and should be booked ahead.

Is Siena a good day trip from Florence?

Yes. With an early start, you can see the cathedral complex, the Campo and the Civic Museum and be back in Florence for dinner.

Plan Your Stay

Siena is best enjoyed as part of a longer Tuscan journey. Explore Tuscany’s wine country, base yourself in Florence with our luxury guide to Florence and perfect day in Florence, and browse more things to do in Siena.

For transfers, car hire, eSIMs and everything else you need before the trip, see our Italy travel planner.

Related guides: read our articles on San Gimignano, a Val d’Orcia road trip and the best day trips from Florence.