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Boulevardbanen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Boulevardbanen">Boulevardbanen</a>]]>
Eurotunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Eurotunnelen">Eurotunnelen</a>]]>
Frejustunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Frejustunnelen">Frejustunnelen</a>]]>
Hallandsåstunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Hallands%C3%A5stunnelen">Hallandsåstunnelen</a>]]>
Hvidovretunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Hvidovretunnelen">Hvidovretunnelen</a>]]>
Kulbanetunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Kulbanetunnelen">Kulbanetunnelen</a>]]>
Lieråsen tunnel
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Lier%C3%A5sen_tunnel">Lieråsen tunnel</a>]]>
Lötschberg-Basistunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/L%C3%B6tschberg-Basistunnelen">Lötschberg-Basistunnelen</a>]]>
Marmaray
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Marmaray">Marmaray</a>]]>
Moffat Tunnel
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Moffat_Tunnel">Moffat Tunnel</a>]]>
Oslotunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Oslotunnelen">Oslotunnelen</a>]]>
Simplontunnelen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Simplontunnelen">Simplontunnelen</a>]]>
Skt. Gotthardtunnelen (jernbane)
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Skt._Gotthardtunnelen_%28jernbane%29">Skt. Gotthardtunnelen (jernbane)</a>]]>
Storebæltsforbindelsen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Storeb%C3%A6ltsforbindelsen">Storebæltsforbindelsen</a>]]>
Øresundsforbindelsen
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/%C3%98resundsforbindelsen">Øresundsforbindelsen</a>]]>
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