<a href="https://en.wikipedia.org/wiki/Railroad_switch#Crossover" class="extiw" title="w:Railroad switch">crossover</a> in tunnel, straight lines out of use
<a href="//commons.wikimedia.org/wiki/User:Axpde" title="User:Axpde">axpde</a>
2008-07-03
<span class="int-own-work" lang="en">Own work</span>