Explore and absorb all the major classic sights of Oslo with the City Sightseeing Traditional Tour double-decker buses. Royal Palace, Vigeland Sculpture Park and the Viking Ship Museum are essential must-sees for anyone visiting Oslo! With City Sightseeing Hop Off Hop On tours, you’ll uncover the heart of the city, set at your own pace and convenience. Buses are only ever minutes away. These purpose designed and professional tours guide you to gain the most from your city experience.