Siena Cathedral

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Visit the Duomo di Siena, also known as Siena Cathedral or the Cathedral of Saint Mary of the Assumption, is the seat of the Archbishop of Siena-Colle di Val d'Elsa-Montalcino and is one of the most important sites in the city. Take a guided tour of the impressive interior, climb to the Gate of Heaven, and discover the cathedral’s treasures in the Museo dell’ Opera. Lines can be long, especially in summer, so book your tickets in advance to skip the lines!

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Siena Cathedral & Piccolomini Library: Entry Ticket

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Siena Cathedral Complex (Opa Si Pass)

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Siena: Walking Tour and Skip-the-Line Duomo Tickets

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Siena: Duomo di Siena Private Guided Tour

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5 tips for visiting the Siena Cathedral

Silence Please: Visit the Duomo’s Amazing Library

The Piccolomini Library is one of the highlights of Siena Cathedral, its brightly colored frescoes telling the story of Siena’s Cardinal Enea Silvio Piccolomini, who would go on to become Pope Pius II. You can examine them in more detail and see fine examples of illuminated manuscripts as you explore the library

Don’t Forget to Look Down

The marble mosaic and graffito floor of the Duomo di Siena is uncovered from August 18 to November 15, 2026. Look out for the wolf suckling Romulus and Remus, the scene of the Slaughter of the Innocents, and other stories from the Bible and mythology. Visit during this period to see the floor in full.

Ascend the Gate of Heaven

The Porta del Cielo, or Gate of Heaven, is a unique sequence of staircases and walkways with close-up views of the Cathedral interior and dome, plus a panorama of Siena from the exterior of the cupola. Its single ticket includes the Cathedral roofs, all museums in the Complex, and a free audio guide on your smartphone. For the 2026 season, full-price tickets cost €21 per person and are available only online or at the ticket office, subject to remaining availability.

Don’t Forget the Façade

The façade of Siena Cathedral is a unique combination of French Gothic, Romanesque, and Classical features, and is one of the most impressive parts of the cathedral. Featuring hundreds of statues of religious figures, philosophers, and poets, plus glittering mosaics, you’ll want to spend some time spotting all the details.

Watch out for the Dress Code

The Duomo di Siena is a religious building with a reasonably strict dress code. Visitors should ensure that their shoulders are covered and that any shorts or skirts reach to the knee. Bring a scarf or jacket to cover up in the hot summer months.

Frequently Asked Questions

What’s special about Siena Cathedral?

The Cattedrale Metropolitana di Santa Maria Assunta, also known as the Duomo di Siena, is a large Roman Catholic cathedral and seat of the Archbishop of Siena-Colle di Val d'Elsa-Montalcino. Work on the cathedral began in 1196, and less than 20 years later mass was already being said inside the church, even though the building work was nowhere close to being finished. Various phases of construction continued until 1348 when the arrival of the Black Death in Siena caused the town to lose between 30 and 50% of its population. This last phase of construction, which would have more than doubled the size of the cathedral, was then abandoned. The cathedral is home to sculptures from many of the greatest Italian artists, including a statue of Saint Paul by a young Michelangelo, The Feast of Herod by Donatello, and a breathtaking sculpture of Saint Jerome by Bernini.

What’s the Gate of Heaven?

The Gate of Heaven, or Porta del Cielo, opened in 2015. Located in the rafters of the cathedral are a sequence of rooms and walkways that were previously only accessible by builders working on the site. Along the path, you can get a closer look at the stars painted on the inside of the impressive dome, the stained glass windows, and a bird’s-eye view of the mosaic floor, if it’s uncovered. On the left-hand side of the church, you’ll also be able to access the terrace around the cupola, where you’ll get a staggeringly beautiful view over the city of Siena. The Gate of Heaven can only be visited with a guide at a specific time, so make sure to check when you book your tickets that this option is included and make a note of your selected time.

What’s inside the Museo dell’ Opera?

The Museo dell’ Opera was founded in 1869 and houses a large percentage of the original and most precious artwork from the cathedral is on display inside. It’s located in the north aisle of the ‘new cathedral’ and is spread over two floors. The crypt contains most of the original statues from the façade designed by Giovanni Pisano, removed to protect them from damage. It also contains an original stained glass rose window by Cimabue which was removed during World War II to protect it and was later replaced by a replica. You can get far closer to these pieces than the artists ever intended so you can really see every detail. On the first floor, you’ll be able to see an elaborate altarpiece by Duccio di Buoninsegna which took three years to paint. The first floor also contains the treasury, which contains more than 200 liturgical objects, many of which are made of gold and precious stones. One of the highlights is a delicate golden rose created by Gian Lorenzo Bernini. The final floor contains a collection of religious paintings dating from the 13th to the 19th century and a selection of tapestries and textiles.

How much time should I plan for a trip to the cathedral complex?

If you’re not planning to take the Gate of Heaven tour, then you should plan around two hours to explore the Cathedral, the Museo dell’ Opera, the Piccolomini Library, and Baptistry. The Gate of Heaven tour takes between half an hour and an hour, so if you’re intending to climb to the walkways you should plan at least three hours for your visit. If you’re the kind of person who loves religious architecture, you can easily spend half a day or more exploring every part of the cathedral complex in depth.

Should I take a guided tour?

If you’re intending to visit the Gate of Heaven then you’ll have to take part in a guided tour. You can easily explore the other areas of the cathedral without a guide, but you might want to consider one anyway! The cathedral has a long and interesting history and its interior contains several quirky features that you might miss without someone who can point them out. There is a multimedia tour available to borrow which takes you on one of three routes: Cathedral, Museo dell’ Opera, or All-Inclusive Opa Si Pass. The tour takes up to an hour and can also provide more context, especially in the Duomo Nuovo. Gate of Heaven and Opa Si Pass tickets include a free audio guide on your smartphone.

Can I attend mass in the cathedral?

Of course! If you’re visiting for a service or to pray, enter via the Porta del Perdono, the Gate of Forgiveness. On weekdays, Mass is celebrated at 9:30 am in the Chapel of Our Lady of the Vow. On holidays and days before holidays, services are at 8:00 am, 11:00 am, 12:15 pm, and 6:00 pm (6:30 pm in summer). During floor-uncovering periods, services move to the church of Santissima Annunziata; check the current schedule for your visit. If you’re not attending a service, please be quiet and respectful of worshippers.

General information

opening hours

During the 2026 floor-uncovering period, Cathedral visitor hours through late October are Monday–Saturday 10:00 am–7:00 pm and Sunday 9:30 am–6:00 pm. From November 1–15, Monday–Saturday hours are 10:30 am–5:30 pm; check the date-specific schedule for Sundays and public holidays. From November 16–December 24: 10:30 am–5:30 pm; Sundays and public holidays 1:30 pm–5:30 pm. On December 1, the Cathedral closes at 3:00 pm, with last admission at 2:30 pm. From December 26, 2026, to January 6, 2027: 10:00 am–7:00 pm; on Sundays and public holidays the Cathedral opens at 1:30 pm, with closing time varying by date. Check the current calendar for December 25. Last admission is 30 minutes before closing. Religious services and special events can change visitor hours; the Gate of Heaven follows Cathedral hours.

address

Duomo di Siena
Piazza del Duomo, 8
53100 Siena SI
Italy

how to get there

It takes about 15 minutes to walk to Siena Cathedral from the main train station in Siena, and it’s also within walking distance of several of Siena’s most important attractions. You can even reach Siena from Florence within an hour and a half, making it the perfect location for a day trip. The closest stop for local buses is Piazza Indipendenza, which is served by routes 589, 637, S21, and S54. It is extremely difficult to find parking near the Old Town in Siena, so it’s better not to drive if you can help it.

website

Official site: https://operaduomo.siena.it/en/

tickets

2026 Cathedral admission (per person)
- Full: €10 through November 15 during the floor uncovering; €7 from November 16–December 31.
- Reduced: €8 during the floor uncovering for groups and school groups of more than 14 people, and groups with a guide.
- Free: children age 6 and under; people born in or resident in the Municipality of Siena; accredited journalists; disabled visitors with one carer per visitor; clerics; students of the University of Siena and University for Foreigners of Siena; parish groups of the Archdiocese of Siena with a letter from the parish priest.

Gate of Heaven single ticket (2026 season; per person; Cathedral roofs and all museums in the Complex; smartphone audio guide included)
- Full: €21.
- Children age 7–11: €6.
- Children age 6 and under: free.
- Purchase only online or at the ticket office, subject to remaining availability.

Opa Si Pass (2026; per person; all museums in the Complex; valid for 3 consecutive days; smartphone audio guide included)
- Full: €16 through November 15 during the floor uncovering; €14 from November 16–December 31.
- Children age 7–11: €3.
- Children age 6 and under and the same exempt categories as Cathedral admission: free.

Cathedral admission and the Opa Si Pass are sold online, by call center, and at the two Siena sales points.

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