Olga V.L. (Olga in I.
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I've been there at least 4 times, but they've made more stuff to see that I didn't see the last time I visited a few years ago (or maybe it was already there but I did not noticed it). Take some time to read everything, and learn how people used to live, during those difficult times.
If you want to know about how Iceland evolved as a settlement, visit first this, and then Árbær open air museum (in that one they have a guided tour every day at 13h, which I totally recommend).
Enjoy the exhibition!! ☺️