The lights are crappy, the smell in there is like hell and the exhibited copies from the Louvre's antiquities collection are in a state that's saddening beyond belief. That's the state the station has been in for quite some years now, but things start to look really ugly once the wall-covering stone panels started coming off and some lowbrow sunday-afternoon graffiti wannabees started to put uninspired tagings on the walls.
This view is quite interesting though, because the station was supposed to look like a museum gallery. Now it looks like an apocalyptic version of a museum gallery rather. I'm sure Hubert Robert must have dreamt up something similar when he got inspired to paint his "Grande Galerie en ruines".