Sigtuna is a picturesque and historic town located in Stockholm county, in the province of Uppland, Sweden. It is known for being one of the oldest towns in the country, with a rich history dating back to the Viking Age. The town is situated on the shores of Lake Mälaren, surrounded by beautiful natural landscapes and charming countryside. Sigtuna is characterized by its well-preserved medieval architecture, including colorful wooden houses, cobblestone streets, and ancient ruins. The town is home to several historic landmarks, such as the ruins of St. Olof's Church, the Sigtuna Museum, and the rune stones at Stora Gatan.