One of the first places we visited was The Settlement Exhibition, a museum with lots of exhibits about the early Viking settlers in Iceland. It is titled Reykjavik 871± 2 because 871 or so was the year when there was a volcanic eruption which deposited some materials which were used as part of the construction of a hall that was occupied from 930-1000.
There was a model of the settlement that was hard to photograph because there was no way to get the camera high enough (I should have had my monopod - left in the hotel room - which would have helped.)
There were models of the building which was a pretty elaborate structure (but I apparently didn't take a picture of it) and lots of information that they had figured out about the settlement.
And some items from later times - at many places there were collections of stuff like this which I always like looking at: