Sigtuna is a small town in Sweden, located on the shores of Lake Mälaren. Founded in the late 10th century, it is one of the oldest towns in the country and played a significant role in the early history of Sweden. The town is known for its well-preserved medieval architecture, including charming wooden houses and ancient ruins. Today, Sigtuna is a popular tourist destination, attracting visitors with its historical sites, such as the Sigtuna Museum and the remnants of old churches. The town also features a picturesque main street, lined with shops and cafes, making it a lovely place to explore.