Under the footbridge of Notre-Dame, there exists a Paris that is not always apparent at first glance. There, just beneath the steps of walkers and the curious, the Archaeological Crypt of the Île de la Cité unfolds more than two thousand years of urban history, like a buried stage that tells, stone by stone, how Lutetia became Paris. On the occasion of the European Archaeology Days, organized this year over the weekend of June 12–14, 2026, this secret hidden in the heart of the capital invites us to a special program!
The Paris archaeological crypt under Notre-Dame Cathedral
The archaeological crypt beneath the forecourt of Notre-Dame in Paris is a real step back in time. Here's what to expect when you visit. [Read more]
That venue is especially suited to it: The Crypt houses the remains uncovered during excavations carried out between 1965 and 1970 beneath the Notre-Dame forecourt, and today offers an exceptional panorama of the evolution of Île de la Cité, Paris’s historic heart. Here you can trace the traces of a quay from Ancient Lutetia, the remains of a Gallo-Roman thermal complex, a stretch of early 4th‑century city walls, as well as medieval, classical elements and the more modern urban developments of the city.
With the help of a short questionnaire, discover the remnants of the ancient city of Lutetia and the techniques used to preserve traces of an ancient civilization.
On-site registration on the day of the activity, subject to limited availability
This tour offers a chance to explore the exhibition Dans la Seine. Objets trouvés de la Préhistoire à nos jours. It also reveals the exceptional artifacts preserved in the Archaeological Crypt.
On-site registration on the day of the activity, while spaces last
Starting at the Archaeological Crypt on Île de la Cité, you'll uncover the ruins of the city's oldest quarter. Then carry on the tour on the forecourt and around Notre-Dame Cathedral.
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Dates and Opening Time
From June 13, 2026 to June 14, 2026
Location
The archaeological crypt on the Île de la Cité
1 Place du Parvis Notre-Dame
75004 Paris 4
Official website
www.crypte.paris.fr
The Paris archaeological crypt under Notre-Dame Cathedral
