The quality of the experience depends on what is o...

The quality of the experience depends on what is on display but given that entrance is free it's worth checking out once in a while. I've seen some provocative pieces here, like Hirst's animals in formaldehyde and probably the modern "work" I find most pertinent and hilarious: a few cans of Manzoni's merda d'artista. What's on offer is usually pretty boring - so it is luck of the draw!