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Bolærne fort
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Bol%C3%A6rne_fort">Bolærne fort</a>]]>
Brårudåsen batteri
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Br%C3%A5rud%C3%A5sen_batteri">Brårudåsen batteri</a>]]>
Citadellet (Horten)
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Citadellet_%28Horten%29">Citadellet (Horten)</a>]]>
Folehavna fort
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Folehavna_fort">Folehavna fort</a>]]>
Fredriksvern
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Fredriksvern">Fredriksvern</a>]]>
Håøya fort
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/H%C3%A5%C3%B8ya_fort">Håøya fort</a>]]>
Mokoll batterier
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Mokoll_batterier">Mokoll batterier</a>]]>
Norske Løve (fort)
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Norske_L%C3%B8ve_%28fort%29">Norske Løve (fort)</a>]]>
Oddane fort
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Oddane_fort">Oddane fort</a>]]>
Rakke fort
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Rakke_fort">Rakke fort</a>]]>
Staverns Fort
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Staverns_Fort">Staverns Fort</a>]]>
Sundås batteri
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Sund%C3%A5s_batteri">Sundås batteri</a>]]>
Tjønneberget
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Tj%C3%B8nneberget">Tjønneberget</a>]]>
Torås fort
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Tor%C3%A5s_fort">Torås fort</a>]]>
Tunsberghus
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Tunsberghus">Tunsberghus</a>]]>
Vealøs (Horten)
<![CDATA[<br>Source: Wikipedia article <a href="https://no.wikipedia.org/wiki/Veal%C3%B8s_%28Horten%29">Vealøs (Horten)</a>]]>
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