Map of Berlin with the planned subway lines with the names U3 and U10.
Users <a href="https://de.wikipedia.org/wiki/User:Saint_Etienne" class="extiw" title="de:User:Saint Etienne">Saint Etienne</a>, <a href="https://de.wikipedia.org/wiki/User:Sansculotte" class="extiw" title="de:User:Sansculotte">Sansculotte</a> on <a class="external text" href="https://de.wikipedia.org">de.wikipedia</a>
CC BY-SA 1.0
Originally from <a class="external text" href="https://de.wikipedia.org">de.wikipedia</a>; description page is (was) <a href="https://de.wikipedia.org/wiki/Image:Karte_berlin_u_u10_3.jpg" class="extiw" title="de:Image:Karte berlin u u10 3.jpg">here</a>