I want to see the WWI museum in Meaux and also some sites and am wondering what is the fastest way to get there and from which train station in Paris to leave from. Do I need to book in advance or can I just purchase a walk up fare? I understand it's less than one hour away from central Paris.
I am currently making lists of WWI and WWII museums and memorials to visit. Meaux looks like a very beautiful city and there is a castle as well.