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Oslo sentrum

700 years of power, war and secrets — under your feet.

You're walking on the same paving stones as kings, prisoners, and occupiers.

Akershus Fortress has stood since 1299. No Norwegian city holds more history per square meter.

What you'd hear right here
«The building you're passing now was used as a prison during the Second World War. This is where Vidkun Quisling sat awaiting his sentence. This is where Norwegian resistance fighters were executed by German occupiers. The gate you just walked through was built in the Middle Ages to stop an attack that never came. This place holds more than the tourist brochures tell you.»

This is a taste of what EchoTrail would tell you here. Authentic. Based on your exact GPS position.

Norway's most layered historical site

Akershus Fortress was begun by Haakon V around 1299, after Oslo was plundered by Duke Eirik. It was meant to be an impregnable stronghold — and it withstood every attack throughout the Middle Ages.

During the Second World War, the fortress served as the Nazis' administrative headquarters in Norway. Norwegian resistance fighters were executed here. Quisling was imprisoned and shot in the fortress moat in 1945.

EchoTrail is triggered at 12 points within the fortress grounds — from the medieval castle to the WWII prison cells, the storehouses, and the viewing platforms over the Oslofjord.

c. 1299
Founded
30+ historic
Structures
38,000 m²
Area
Free
Admission

This is just a taste.

Download EchoTrail and experience Akershus festning in a whole new way — with stories triggered right where they happened, as you walk.

Available on iOS and Android · 3-day Turvenn+ free