I had been here before, by chance. This time I went looking for it. I only had a cheap disposable camera with me on this trip, but this picture turned out all right. I have a thing about Héloïse and Abélard, and I teach their story and their writing.
The sign says that this is where they lived in 1118 and that the house was rebuilt in 1849. So it's not the original, but it is the very place.
It is on the Ile de la Cité on the Quai aux Fleurs. Notre-Dame is nearby. Héloïse's uncle Fulbert was a canon there.
Click on the photo to enlarge.