The interesting medieval study centre Snorrastofa is devoted to celebrated medieval poet, historian and statesman Snorri Sturluson, and is built on his old farm, where he was brutally slain. The centre houses displays explaining Snorri's life and accomplishments, including a 1599 edition of his Heimskringla (sagas of the Norse kings). There's also material on the laws, literature and society of medieval Iceland, and on the excavations of the site. You can ask to see the modern church and reading room upstairs.