Fort · Sentrum, Oslo

Akershus Fortress

Akershus Fortress
Photo: Falk2, CC BY-SA 4.0 via Wikimedia Commons

Built in the 13th century, it has functioned as a royal residence, military base and prison. The site includes ramparts, courtyards and the Akershus Castle museum. Walk the perimeter for views over Oslofjord.

Updated October 18, 2026On day 1 of Oslo: Weekend Escape

Visiting Akershus Fortress: what to know

Tickets
Grounds are free. Castle museum charges an entry fee.
Time needed
One to two hours
Best time
Daylight hours from May to September
Getting there
Walk from Oslo Central Station or take tram to Sentrum

Oslo itineraries with Akershus Fortress

Day 1 of Oslo: Weekend Escape

The harbour

How Akershus Fortress fits into a day.
  1. 10:00Oslo Opera HouseBjørvika
  2. 12:00Munch MuseumBjørvika
  3. 14:30Akershus FortressSentrum
  4. 17:00Aker BryggeAker Brygge
See all 3 days
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Akershus Fortress FAQs

Is Akershus Fortress free to visit?

The outdoor grounds and ramparts have no entry fee.

What is inside Akershus Fortress?

Visitors find the castle, a museum and several historic buildings.

How long does a visit to Akershus Fortress take?

Most people spend one to two hours on site.

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