Árbær Open Air Museum in Reykjavik offers a unique glimpse into Icelandic life in the 19th and 20th centuries through recreated historic buildings like houses, farms, workshops, and churches. Visitors can explore around 30 different points of interest, complete with authentic objects and explanations on how they were used back in the day. Don't miss the free guided tour in English at 1 pm to dive deeper into Icelandic history while feeling like you've stepped back in time!