Oksana S.
Google
20 minutes from Paris by RER A and you are in here. It was interesting to know the way French people went through in world war second, the fight for liberty with Charles de Gaulle on the head. The price is 8€, for children is 4€, for unemployment is just free admission.
Unfortunately, 98% of information is in French language. And some halls need to be cleaned from the dust.