Vaxholm Fortress is a historic military fortress located on an island in the Stockholm Archipelago of Sweden. Built in the mid-16th century, it was designed to protect the entrance to Stockholm from naval attacks. The fortress features a distinctive star-shaped layout and has served various military purposes over the centuries. Today, Vaxholm Fortress is a popular tourist destination, offering guided tours and exhibitions about its history. Visitors can explore the well-preserved buildings and enjoy scenic views of the surrounding archipelago. The fortress is accessible by boat, making it a charming day trip from the city.