London Underground's art deco Cockfosters station on the Piccadilly line
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/8265353@N05">R/DV/RS</a> from Belgium/UK
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/redvers/502510077/">Cockfosters station on the London Underground</a>