Hora fugit - Un peu de Paris
There are still several medieval places in Paris that can be seen today. Altough the stroll can be done all at once, I have split it into three parts:
Ile de la Cité and stroll around Cathedral Notre-Dame.
From the Saint-Louis and Louis-Philippe bridges, one can reach the right bank and go along old streets of Marais district.
From Pont-Neuf bridge, one can reach the left bank and walk in old streets of Quartier Latin.