Djurgården is a tranquil island known for the Vasa Museum, featuring a 17th-century warship, and the Skansen open-air museum, which has craftspeople and reconstructed homes depicting Swedish life through the decades. Fans of Swedish pop music browse memorabilia, old records and costumes, at ABBA: The Museum. Ferries dock next to Gröna Lund amusement park, known for its thrill rides and summer concerts.