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Frankfurt U-Bahn
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Frankfurt_U-Bahn">Frankfurt U-Bahn</a>]]>
Glasgow Subway
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Glasgow_Subway">Glasgow Subway</a>]]>
Metro-2
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Metro-2">Metro-2</a>]]>
Rom Metro
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Rom_Metro">Rom Metro</a>]]>
Sevillas Metro
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Sevillas_Metro">Sevillas Metro</a>]]>
Stockholms Tunnelbana
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Stockholms_Tunnelbana">Stockholms Tunnelbana</a>]]>
U-Bahn Hamburg
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/U-Bahn_Hamburg">U-Bahn Hamburg</a>]]>
United States Capitols undergrundsbane
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/United_States_Capitols_undergrundsbane">United States Capitols undergrundsbane</a>]]>
Washington Metro
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Washington_Metro">Washington Metro</a>]]>
Wiener U-Bahn
<![CDATA[<br>Source: Wikipedia article <a href="https://da.wikipedia.org/wiki/Wiener_U-Bahn">Wiener U-Bahn</a>]]>
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