I really liked this museum. There's so much stuff ...

I really liked this museum. There's so much stuff to decent and it's layout is good. Stumbled on it whilst looking for something else and spent a good 4 hours in there. Had a reduced ticket due my age, showed ID when I bought the ticket and then had to show it again for the exhibition entrance and then again at the entrance to the main collection. I will note that some things are only in French.