A beautiful and well-maintained museum right at the entrance to the city. It's not much, but there's a lot of information about those terrible events, you can read it and learn something new for yourself.
The layout is really very interesting! The location is good. If you find yourself in New Athos, it's definitely worth a look. This is not one of the main attractions, but a visit will definitely not disappoint you. I also liked the quad-Pedro excourses, it turned out to be an amazing adventure on quad bikes!
There is nothing special about the photo with the characters, in a small room, the view itself is cool, but new Athos is all like that, go in purely for show and knowledge of history.