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Oslo Fortress
Akershus Fortress, overlooking the Oslo Fjord, is one of Norway's most significant historical landmarks and a symbol of national resilience. Construction began in the late 1290s under King Håkon V Magnusson to defend the capital against emerging naval and land-based threats. Throughout its long history, the fortress withstood numerous sieges, primarily by Swedish forces, and was never captured in combat. During the 17th century, King Christian IV modernized the defenses and converted the medieval castle into a grand Renaissance palace, which served as a royal residence. The site took on a darker role during the German occupation in World War II, serving as a prison and execution ground for the resistance, a period now chronicled in the on-site Norwegian Resistance Museum. The Royal Mausoleum, located within the castle church, is the final resting place of several modern Norwegian monarchs. Today, the fortress remains an active military site housing the Ministry of Defence, while also serving as a popular public park and a venue for official state functions.
- Location: Norway
- Top sights: Akershus fortress · Akershus castle · Akershus slottskirke
- Nearby: Fjellstrand (14 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -6 | -5 | -2 | 4 | 10 | 14 | 16 | 15 | 11 | 5 | 0 | -5 |
| Rain mm | 78 | 60 | 56 | 61 | 92 | 96 | 112 | 122 | 96 | 104 | 94 | 78 |
📋 Practical info
Geography
Facts
- Construction of the fortress was initiated around 1299 by King Håkon V.
- Akershus has the distinction of never being successfully taken by siege.
- King Christian IV remodeled the medieval castle into a Renaissance palace after 1588.
- The Royal Mausoleum contains the tombs of King Haakon VII and King Olav V.
- The Norwegian Resistance Museum on the site covers the occupation from 1940 to 1945.
- The Changing of the Guard takes place daily at 1:30 PM within the fortress grounds.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
© OpenStreetMap contributors · OpenRouteService
Sights in the town Oslo Fortress (10)
Akershus castle
Former medieval castle in Oslo, Norway, now a museum and venue for events.
Retterstedet på Akershus festning
Former execution site in Oslo, Norway, located on the Akershus fortress grounds.
Munks tårn🗼 tower
Tower at Akershus fortress in Oslo, part of the historic defensive structure.
Norway's Resistance Museum🏛 museum
World War II museum at Akershus Fortress, Oslo, focusing on the Norwegian resistance.
Monument in memory of deported Norwegian Jews
Monument commemorating 532 Norwegian Jews deported from this site to Auschwitz in 1942.
The National Museum - Architecture🏛 museum
Museum in Oslo dedicated to architecture and Norway's architectural heritage.
Orlogsgast
Artwork in Oslo, a sculpture or installation situated on the fortress grounds.
Sights nearby
Frequently asked questions
How old is Akershus Fortress?
Is entrance to the fortress free?
What can you visit inside the fortress?
When does the changing of the guard take place?
Are there good viewpoints?
Oslo Fortress: where is it located?
Oslo Fortress: what is there to see?
Oslo Fortress: when is the best time to visit?
Oslo Fortress: why is it worth visiting?
Nearby cities
