Back to Paris. Very close to the Port Royal (RER) underground station you may find the eponymous abbey. A famous religious place which used to be the centre of jansenism. Famous writers and philosphers like Pascal and Racine for instance were familiar with that place which was brutally closed in 1664. Yet, 400 years later, most Parisians have forgotten about the abbey, now part of the maternity hospital Baudeloque. The cloister is almost untouched and very peaceful. I really advise that you spare a few minutes to visit what’s left of the abbey and rest in the shade of its arches, thinking about its turbulent history.