Things to doArchaeological Crypt of the Paris Notre-Dame

Archaeological Crypt of the Paris Notre-Dame

The Archaeological Crypt of the Paris Notre-Dame offers visitors a fascinating journey into the 2,000-year history of Paris, revealing the layers of urban transformation beneath the square in front of Notre-Dame Cathedral. From ancient Roman remains to medieval foundations and 19th-century renovations, this underground museum brings to life the story of one of the city's oldest neighborhoods.
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Free for individuals under 18 years old, disabled and their personal care attendant and job seekers.

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10 AM - 6 PM
Free cancellation available
Mobile Voucher
No Parking available
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Overview

A Rich Historical Overview

The crypt was established in 1980 to showcase archaeological discoveries unearthed during excavations from 1965 to 1972.

These remains provide a unique perspective on the architectural and urban evolution of the Île de la Cité, tracing its transformation from the ancient Roman settlement of Lutetia to the bustling medieval city centered around Notre-Dame, and later, the radical urban planning under Haussmann in the 19th century.

The Ancient Roots of Lutetia

In the Gallo-Roman era, Lutetia emerged as a thriving settlement under Emperor Augustus (27 BC–14 AD).

The crypt preserves remnants of this period, including a quay from the ancient port and the remains of luxurious dwellings that hint at the city’s affluence.

A highlight of the crypt is the 4th-century ramparts and the sub-floor heating system of a Roman bathhouse, showcasing Lutetia’s advanced infrastructure.

Medieval Development Around Notre-Dame

The Middle Ages brought significant changes to the Île de la Cité.

By 1163, Notre-Dame’s construction spurred urban growth, leading to the creation of Rue Neuve-Notre-Dame, the reconstruction of the Hôtel-Dieu hospital, and the establishment of churches and residences.

In the crypt, visitors can see the cellars of medieval houses and the foundations of the Sainte-Geneviève des Ardents church, remnants of the vibrant neighborhood that once surrounded the cathedral.

Urban Transformations in the 18th and 19th Centuries

The 18th century saw sweeping changes aimed at improving sanitation and traffic flow. Many medieval structures were demolished, and new buildings, such as the Hospice des Enfants-Trouvés, were erected.

During the Haussmannian era, further modernization reshaped the Île de la Cité, replacing winding lanes with broader streets and erecting new structures like the current Hôtel-Dieu hospital.

These transformations are vividly illustrated in the crypt, where visitors can explore the foundations of destroyed buildings and the relics of this ambitious urban project.

Exhibitions on Parisian History

The crypt frequently hosts temporary exhibitions focusing on different periods of Parisian history, from daily life in Gallo-Roman Lutetia to the city’s medieval and Renaissance developments.

These exhibits complement the permanent displays, offering deeper insights into Paris’s evolution over millennia.

Best Things to Do and See

Explore the Roman Bathhouse: Walk through the preserved remains of the ancient bathhouse, complete with visible sub-floor heating systems. Marvel at the 4th-Century Ramparts: Witness the ingenuity of Roman fortifications, constructed with materials salvaged from abandoned monuments. Step Into Medieval Paris: Discover the underground cellars of houses and churches, offering a glimpse into life in the shadow of Notre-Dame during the Middle Ages. Learn About Haussmannian Paris: Trace the dramatic urban changes of the 19th century through the foundations of demolished buildings and redesigned squares. Visit Special Exhibitions: Delve into thematic displays that illuminate various eras of Parisian history, from Gallo-Roman commerce to medieval craftsmanship.

Additional Info

Opening hours

10 AM - 6 PM

Audioguide & App

Visitors to the Archaeological Crypt can enhance their experience with an audioguide, available in French, English, and Spanish for €5. The audioguide provides a 30-minute narrated tour, offering insights into the site's rich history and its remarkable archaeological treasures.

Wifi

No Wifi.

Wheelchair

The museum is not accessible to persons with reduced mobility.

Pets

Animals are not allowed in the museum.

Location

7 Parvis Notre-Dame - Place Jean-Paul II, 75004 Paris

How to get there

The Archaeological Crypt of the Île de la Cité is located directly beneath the square in front of Notre-Dame Cathedral, in the heart of Paris. The nearest metro station is Cité on Line 4, just a short walk away. Visitors can also use Saint-Michel – Notre-Dame (RER B and C) or reach the site via several bus routes (21, 24, 27, 38, 47, 85 and 96) that stop near Notre-Dame. For those arriving by car, limited parking is available nearby, but public transport is strongly recommended due to the central location.