Abercynon Signalling Centre. Otherwise known as a signalbox, the structure sits stolidly at the south-eastern corner of the station area.
<a rel="nofollow" class="external text" href="https://www.geograph.org.uk/profile/25788">Peter Whatley</a>
CC BY-SA 2.0
From <a rel="nofollow" class="external text" href="https://www.geograph.org.uk/photo/7188361">geograph.org.uk</a>