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Archeological Crypt of Notre Dame

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Archeological Crypt of Notre Dame


Ruins of paris, 1700 years ago

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Why you will love it?

The Archeological Crypt of Notre Dame, located at the opposite end of the square facing Notre Dame Cathedral, is a unique place to witness ruins of Paris some 1700 years ago. These ruins were discovered in 1970 while building an underground parking lot. Interactive videos and media will help you understand what life was like back in the middle ages, as well as the construction of the world famous cathedral.

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About this place

7 Parvis Notre-Dame - Place Jean-Paul II, 75004 Paris
Line 4 - Cité
Line C - Saint Michel

Wednesday : 10:00 am - 17:45 pm
more less
Monday : Closed Tuesday : 10:00 am - 17:45 pm Wednesday : 10:00 am - 17:45 pm Thursday : 10:00 am - 17:45 pm Friday : 10:00 am - 17:45 pm Saturday : 10:00 am - 17:45 pm Sunday : 10:00 am - 17:45 pm
1 May

Our Insiders' Article

The Crypt

In the 1970’s, the construction of a new parking space right under Notre Dame Cathedral started, but quickly came to a halt, as an unexpected discovery was made. Under the square facing Notre Dame Cathedral, the construction workers stumbled upon the medieval remains of Paris. In this 2200m² (23,680sq ft) room, several curiosities from the 3rd to the 19th century are to be seen. The Archeological Crypt of Notre Dame therefore offers a unique vision on the urban and architectural evolution of Paris on the island of La Cité.

Making the Most of it

Visiting the Archeological Crypt of Notre Dame takes about 30mn and is a perfect way to complete your visit of the Ile de la Cité. Since most of the tourists don’t know about this place, it is rarely very crowded so you don’t need to worry about waiting in line. There is a path around the ruins and for an optimal experience, don’t hesitate to use the interactive 3D screens.

Audioguides are available in English, as well as 1 euro treasure hunt games for children over 7 years old.


The visit kicks off with models and information boards explaining the evolution of Paris throughout the centuries. You will then successively discover the following highlights:

The ruins of streets, houses and fortifications at the center of the Archeological Crypt of Notre Dame. Some ruins date back to the 4th century.

The ruins of the ancient port of Lutetia (former name of Paris). Here, video projectors recreate the ambiance of a small port.

The ruins of ancient roman thermal baths, with an interactive 3D tactile screen explaining how they worked.


During the 1st century, Lutetia was created by the Romans on the Southern (Left) bank of the Seine River. But due to constant invasion threats from roaming barbarian hordes, the population of Lutetia started settling on the island of La Cité, which was a lot narrower back in the day. Fortifications around the island were built in the year 308, with large blocks of stone taken for the abandoned monuments of the left bank. For centuries, l’Ile de la Cité was where the kings lived, and it is still geographically the center of Paris.


We recommend the Archeological Crypt of Notre Dame to the people that are interested in knowing more about the history of Paris. A lot of things are done for children, so don’t hesitate to bring them with you. 

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