Most popular military architecture NorwayØstfold Military architecture Østfold Military architecture Østfold mapSee on the map Østfold military architecture by popularity rating +HALDENNorwayFredriksten fortress+GAMLE FREDRIKSTADNorwayKongsten Fort See military architecture in other regions Akershus Finnmark Hordaland Nordland Oslo Østfold Rogaland Telemark Trøndelag Vestfold West Agder Other categories:MuseumsFortresses
