F is for FRIVOLITY!
Moulin Rouge, Paris.
I only passed by this area during my stay in Paris. Basically me & my pals just gawked at the sights through the window of our slowly driven cab.
It was too cold and rainy for us to venture out & walk along those streets, despite the cabbie's vehement pleas for us to do so & experience...err..something different & exciting behind the doors of the buildings. Alas, by that time we had already walked miles and miles at a religious historical attraction uphill and the cold had really really killed our excitement for any kind of nightlife. All we wanted to do by then was to return to our apartment for dinner & then hit the beds! The cabbie could not believe us! Haha!