Akershus Fortress: 700 Years of Norwegian History
Akershus Fortress (Akershus Festning) is a medieval castle and fortress complex dating back to 1299, making it one of Oslo's oldest buildings. Strategically positioned on a promontory overlooking the Oslo Fjord, the fortress has protected Oslo for over 700 years and played a crucial role in Norwegian history.
Today, the fortress grounds are free to explore and offer spectacular views of the harbor and city. Within the complex, you'll find medieval halls, the Norwegian Resistance Museum, walking paths, green spaces, and several historic buildings that tell the story of Norway from the Middle Ages to World War II.
What to See & Do
The Castle (Akershus Slott)
The medieval castle was built around 1300 by King Håkon V and later transformed into a Renaissance palace by King Christian IV in the 1600s. Guided tours take you through the banquet halls, castle chapel, royal mausoleum, and dungeons.
- • Entry: 100 NOK (free with Oslo Pass)
- • Guided tours available in English and Norwegian
- • See the Royal Mausoleum (burial place of Norwegian kings)
- • Explore medieval halls and Renaissance rooms
Norwegian Resistance Museum
Located within the fortress, this powerful museum chronicles Norway's occupation during World War II (1940-1945) and the Norwegian resistance movement. One of Oslo's most moving museums.
- • Entry: 80 NOK (free with Oslo Pass)
- • Open daily (hours vary by season)
- • English translations throughout
- • Allow 1-1.5 hours
Fortress Grounds
The extensive fortress grounds are free to explore and offer beautiful walking paths, green lawns, and the best harbor views in Oslo. Perfect for picnics and photography.
History of Akershus Fortress
King Håkon V Magnusson built Akershus Castle around 1299 to defend Oslo against attacks. The fortress successfully withstood several sieges over the centuries, including attacks by Swedish forces. Its strategic location on a rocky promontory made it nearly impenetrable.
In the early 1600s, King Christian IV transformed the medieval fortress into a Renaissance royal residence, adding luxurious halls and modernizing the defenses. The fortress remained militarily important until the 20th century.
During World War II, Nazi Germany occupied the fortress, using it as headquarters and an execution site for Norwegian resistance fighters. After the war, several Nazi collaborators were executed here, including Vidkun Quisling, Norway's infamous Nazi puppet leader.
Visitor Information
Essential Details
Fortress Grounds
- Hours: 6:00 AM - 9:00 PM daily
- Entry: FREE
- Accessibility: Some steep paths
Location
- Address: Akershus Festning, 0150 Oslo
- Neighborhood: Sentrum (waterfront)
- Walk from Central Station: 10 minutes
Best Times to Visit
Early morning or evening offers the best light for photography and fewer crowds. Sunset from the fortress walls is spectacular. Summer sees more visitors but also longer opening hours for indoor attractions.
How Long to Spend
- • Grounds only: 30-45 minutes
- • With Resistance Museum: 2 hours
- • With castle tour: 2.5-3 hours
- • Full exploration: Half day
What's Nearby
The Royal Palace →
Official residence of the Norwegian monarch with beautiful park and changing of the guard ceremony.
15-minute walk
Aker Brygge →
Modern waterfront district with restaurants, shops, and stunning fjord views. Perfect for dining.
10-minute walk
Oslo City Hall →
Iconic building where the Nobel Peace Prize ceremony is held. Free tours and impressive murals.
5-minute walk
Oslo Opera House →
Walk on the roof of Norway's stunning opera house. Waterfront location with great architecture.
15-minute walk
Frequently Asked Questions
Is Akershus Fortress free?
The fortress grounds are completely free to explore. Entry to the castle and Resistance Museum requires tickets (or Oslo Pass). Many visitors just explore the free grounds and enjoy the views.
Are there good views from the fortress?
Yes! Some of Oslo's best harbor and fjord views are from the fortress walls and grounds. Bring your camera - it's a favorite spot for photographers, especially at sunset.
Is the fortress still used by the military?
Yes, parts of the fortress complex still house military offices and the Norwegian Armed Forces Joint Headquarters. Visitors can only access designated public areas.