The northern mouth of the railway tunnel that passes beneath the town of Dudley, England, taken in 2011. The railway track is now overgrown, with metal gates barring access into the tunnel.
<a href="//commons.wikimedia.org/wiki/User:LivingInMediocrity" title="User:LivingInMediocrity">LivingInMediocrity</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>