Fjell, NO
Fjell Fortress ([fjɛl]; Norwegian: Fjell festning, German: Festung Fjell), known during World War II as Marine-Küsten-Batterie 11./504 ('Marine Coastal Battery 11/504') is located on the island of Sotra in Øygarden Municipality in Vestland county, Norway (it was part of Fjell Municipality in Hordala
nd county during World War II).
Listen to the audio guide for Fjell festning Free on WIP — starts by itself when you arrive, even with the screen off