Things to do in Milan

Inside Duomo Milan: Discovering its architectural splendor

Last Updated:

Stepping inside the Duomo di Milano is like entering a world where history, art, and spirituality intertwine. While the cathedral’s breathtaking façade is a masterpiece in itself, its interior holds an equally mesmerizing array of artistic and architectural wonders. From soaring columns and intricate stained glass windows to ancient relics and hidden crypts, Inside Duomo Milan offers an unforgettable journey through centuries of faith and craftsmanship. Whether you're drawn to its sacred relics, the mesmerizing play of light through stained glass, or the sense of awe that comes with standing beneath its vaulted ceilings, this experience is not to be missed.

A Brief History of Inside Duomo Milan


A Japanese station master on the Bullet train station platform

Origins

The Duomo’s interior was designed to be just as spectacular as its exterior, with construction beginning in 1386 under Gian Galeazzo Visconti’s vision of a grand Gothic cathedral. The interior’s elaborate features, including its stunning marble floors and towering nave, reflect centuries of artistic and religious devotion.

Historical significance

Over the centuries, the Duomo’s interior has been a witness to countless historical events, from coronations of emperors to papal visits. Its sacred relics, including the Holy Nail of the Cross, are revered by pilgrims and history enthusiasts alike. The cathedral also houses the remains of Saint Charles Borromeo, one of Milan’s most influential religious figures.

Renovations & restorations

To preserve its grandeur, the Duomo’s interior has undergone numerous restorations, the most significant of which took place in the 20th century. Ongoing efforts continue to ensure that its frescoes, sculptures, and stained glass windows remain in pristine condition for future generations.

Why Visit Inside Duomo Milan?


  • Many visitors focus on the Duomo’s exterior and rooftop but miss out on the breathtaking details inside.
  • The vast, dimly lit space, supported by 52 colossal columns, creates a mystical atmosphere unmatched by any other cathedral.
  • The stained glass windows, among the largest in the world, depict biblical stories with stunning detail.
  • You’ll find hidden gems like the Statue of Saint Bartholomew Flayed, a haunting yet masterful piece of Renaissance sculpture.
  • The Archaeological Area beneath the Duomo reveals remnants of Milan’s earlier religious structures, dating back to the 4th century.

Recommended tickets to Duomo Milan


Inside the Duomo Milan


1 The Majestic Nave

  • The main nave is one of the largest in the world, measuring 45 meters high and flanked by 52 massive columns—each representing a week of the year.
  • These intricately carved pillars support the vaulted ceiling, giving the space a breathtaking sense of grandeur and solemnity.
  • The floor is covered in intricate marble mosaics, a blend of different designs added over centuries.
quinta de regaleira

2 Stained Glass Windows

  • The Duomo boasts some of the largest stained glass windows in the world, dating back to the 15th century.
  • They depict biblical stories, saints, and religious figures in mesmerizing color and detail.
  • The best time to see them is midday, when sunlight floods the interior, illuminating the vivid glass panels.
quinta de regaleira

3 The Archaeological Area

  • Hidden beneath the Duomo is the Archaeological Area, which reveals the remains of Saint Thecla’s Basilica, one of the earliest churches in Milan, dating back to the 4th century.
  • You can walk through these excavated ruins, seeing ancient baptisteries and structures from Milan’s early Christian era.
quinta de regaleira

4 The Holy Nail

  • One of the Duomo’s most revered treasures is the Santo Chiodo, believed to be one of the nails used in Christ’s crucifixion.
  • Suspended in a small red light above the altar, this relic is only brought down once a year during the Rite of the Holy Nail (Rito della Nivola), a ceremony dating back to 1576.
quinta de regaleira

5 Statue of Saint Bartholomew Flayed

  • This striking marble statue, sculpted by Marco d’Agrate in 1562, portrays Saint Bartholomew holding his own flayed skin over his shoulders.
  • What makes it remarkable is the anatomical precision, with every muscle, vein, and sinew visible—showcasing the artistic brilliance of the Renaissance.
quinta de regaleira

How to Visit Inside Duomo Milan


Location & entrance

  • The interior of the Duomo di Milano is accessible through the main entrance on Piazza del Duomo.
  • Look for the right-side entrance for those attending mass.

Best time to visit

  • Early mornings (before 10 AM) or late afternoons for a more peaceful experience.
  • The best lighting inside is during midday, when sunlight filters through the stained glass windows.

Duration & route

  • Plan for at least 45 minutes to 1 hour to explore in depth.
  • Suggested route: Start at the main nave, admire the stained glass, visit the altar, descend to the Archaeological Area, and end with a close-up look at Saint Bartholomew’s statue.

Facilities & restrictions

  • Wheelchair accessible with ramps at the main entrance.
  • Photography allowed, but no flash or tripods.
  • Dress code: Shoulders and knees must be covered.

Tips for Visiting Inside Duomo Milan


Red and white bus in Shibuya, Tokyo, Japan
  • Arrive early in the morning to avoid crowds.
  • Purchase tickets online to skip long queues.
  • Respect the dress code – no shorts or sleeveless tops.
  • Bring a guidebook or audio guide to fully appreciate the history behind the artworks.
  • If possible, time your visit with the annual Santo Chiodo ceremony to witness the Holy Nail being lowered.

Frequently asked questions


Inside Duomo Milan

What is the history behind Inside Duomo Milan?

Inside Duomo Milan has been an architectural masterpiece since its construction began in 1386, with elements added over several centuries. It has played a vital role in Milan’s religious and political history, housing relics and art that span nearly 700 years.

 

How long should I spend at Inside Duomo Milan?

Most visitors spend 45 minutes to an hour inside the Duomo. Those interested in art and history may spend longer exploring the details.

 

Is there a special tour for Inside Duomo Milan?

Yes, guided tours are available, offering detailed insights into the cathedral’s interior, relics, and artwork. Many tours include access to the rooftop and the museum.

 

Is Inside Duomo Milan wheelchair accessible?

Yes, the interior is fully accessible, with ramps and elevators available for those with mobility needs.

 

Do I need a separate ticket for Inside Duomo Milan?

No, access to the Duomo’s interior is included in the general Duomo entry ticket. However, additional areas like the Archaeological Area or special exhibitions may require a separate ticket.