The Vikings are long gone, but Sweden’s rolling green hills and seafaring history make it a kid-friendly outdoor playground for families. A vacation to Sweden begins in Stockholm, where children can visit the Royal Palace; tour Skansen, the world’s largest outdoor museum; play pirate on a 1600s warship; or escape the city and island-hop for a day by boat or kayak. For a trip back in time, visit the island of Gotland, where families are met by Sweden’s best cache of medieval churches, walled fortresses and prehistoric sites. For winter warriors, Sweden offers world-class skiing and winter activities. Kid-friendly hotels in Sweden range from centuries-old royal buildings to very modern properties known for simple Scandinavian design.