The Museum itself is fairly big. It doesn't cost all that much so its worth the visit. There's lots of artifacts from the time of New-France. There's also a rather interesting timeline of Quebec, and lots of informative videos in both French and English.
There was an exhibit just on sand for some reason. It was rather interesting since they had sand from all over the world. Its really neat to see all the differenct colours.
They have a special hall for travelling exhibits. When I visited it was on Asterix et Obelix a popular French cartoon which I really enjoyed.
The museum does have a small snackbar in the basement but I would recommend eating at one of the many restaurants near by since the prices were not great and the selection limited.
Overall the musuem is an interesting stop and gives lots of insight on the landmarks your visiting in Old Quebec.
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