The Archeological Crypt doesn't seem to be heavily advertised, but if you are interested in the history of Paris, it is not to be missed. The exhibit itself is much larger than I expected with wonderfully preserved roman remains. Almost all of the displays are written in multiple languages and tell a fascinating story of early Paris. Overall I was really impressed by the quality of the exhibit.

Not many tourists seem to know about this place, which is a shame. If you're interested in Roman and medieval history, learn more about Paris' earlier times in this small but well-put together museum. Located right near Notre Dame, descend the stairs below the modern city street level to where the Roman city of Lutetia was built. See the remains of thermal baths and even the old port. Looks at items recovered from the river from Roman through medieval times. Signs in French, English, and Spanish is highly informative and gives a good overview of the beginnings of the city.

Everyone knows that Paris is a city with a history dating back many centuries, but the Archaeological Crypt, which is located at the foot of Notre Dame cathedral, is about the prehistory of Paris. It starts with Neanderthal flints from more than 50,000 years ago, but the focus is on about 1,000 square feet of preserved ruins of the ancient Roman town of Lutetia. These include the remnants of a port area as well as multiple rooms of a Roman bathhouse. There are also artifacts displayed that have been recovered from the Seine that include swords and spears and religious medallions and totems that were thrown into the river over the ages. The signage is in French, English and Spanish. There are also some short interesting videos in French and 3-D animations of the ruins. The museum can be thoroughly visited in about an hour and costs 9 Euros.

Situated beneath Notre Dame, this is an interesting exhibit that covers the history of the structures and remnants from old Paris - i.e. 2,000 years ago. Much of this includes stone foundations from the Roman era. You'll even see a wall remnant from where the piers would've been on this island for Roman era ships to moor and offload. Fascinating perspective and explanations including collections of items found in the river and around the island during excavations over the years. Nice displays - in French and English mostly. Exhibit doesn't need more than 45 minutes to be seen. Small gift shop at entrance. Note: no toilets on site though.

Wow. I'm a history buff, but I was blown away by the sheer amount of interesting stuff under the current Parisian streets. From before the Romans to modern day, the entire museum is fascinating and thought provoking. I found it very, very cool - you really feel the weight of human lives and their daily activities. It's not on the standard tourist radar, but it is most definitely worth a detour.

We found this place while walking near Notre-Dame. I think that it should be advertised more as we really enjoyed our time there. You can learn many interesting facts about Paris of Medieval Times and earlier. There are some objects found in the Seine and on its banks. All the explanations are written in French and English. We have spent one hour there, but could have spent more if found this place earlier on Sunday.