Overview
Built in 1299 under King Haakon V, this medieval fortress stands strategically above the Oslofjord. In its 700-year history, it has never fallen to enemy attack, and Christian IV rebuilt it as a Renaissance castle in the 17th century. Fortress grounds are free and open 24 hours, with the Royal Mausoleum, Norwegian Resistance Museum (WWII), and Norwegian Armed Forces Museum inside. A daily changing of the guard takes place at 1:30 PM. Grounds free, castle admission about NOK 100. 10-minute walk from Oslo Central Station.
Opening Hours
Grounds: 06:00-21:00; castle interior: 10:00-16:00 (May-Sep; reduced Oct-Apr).
Travel Tips
The grounds are free and a top spot for Oslofjord night views. Daily changing of the guard at 13:30.
Hotels near Akershus Fortress
Hotels and guesthouses in Oslo, Sentrum, Oslo
Other attractions in Oslo
Oslo Opera House
A modern landmark with a walkable rooftop offering sweeping views over the Oslofjord.
Munch Museum
World-renowned museum dedicated to Edvard Munch, painter of 'The Scream.'
Vigeland Sculpture Park
Open-air park showcasing more than 200 sculptures depicting the cycle of human life.
Holmenkollen Ski Jump
One of the world's most famous ski jumps, offering panoramic Oslo views.
Fram Museum
Museum housing the actual Norwegian polar exploration ships Fram and Gjøa.
Royal Palace
Official residence of the Norwegian royal family, with daily noon changing of the guard.
Grünerløkka
Oslo's hippest neighborhood, filled with cafes, vintage shops, and street art.