We were heading somewhere... I cannot quite remember where anymore. I do know we had a bite to eat at a McDonald's (yes, not a very inspired choice in a city filled with culinary delights, but it was convenient) with a rather strange washroom concept. You could only use the washroom if you had bought a meal at the restaurant. The receipt comes with a four-digit code which you key into a panel at the side of the washroom's entrance, 'et voila' the door opens and you can go inside to do your thing.
Anyway, before I digress even further, we went on a bit of a walkabout of the city and these were some of the sights we saw before ending at the Jardin du Luxembourg.
The Sorbonne
The Pantheon
The building facing the Pantheon