Hi, Yes, you can visit with children, i often go to this museum with mines. Of course, you can buy tickets when you arrive and want to visit (i think just a little number of visitors buy before the visit with Internet). There is a restaurant, not really inside, beside, on the same place (you can easily see it with google streets). There is a museum's shop inside, with lot of books and objects in relation with the museum's collection and the temporaries exhibitions.