Interestingly, Icelandic witches were sometimes given credit for warding off the Barbary pirates which sometimes came to the island to capture people. They were said to be able to turn the weather and waves against hostile invaders.
If you like quirky Icelandic museums, I can certainly recommend the Saga Museum in Borganes located right in the heart of where most of the Sagas were set. Charming little exhibits depicting all the nastiness of Viking life in an adorable way.
And the food is amazing.
