Exploring medieval Paris between rainshowers

The weather is colder than last week, with a beautiful lighting, but some rain showers.
I spent the afternoon  looking for shelters against the rain and searching for medieval buildings on the right bank of the Seine. 

And I found some nice ones. 
I also found space invaders and street art in Le Marais. 

We may finally end up with a medieval Paris photo tour and a Paris street art photo tour, who knows?