Padlock in a doorway at Eastern Market in Washington, D.C.<br>Padlock
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/80081757@N00">Alyson Hurt</a> from Alexandria, Va., USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/80081757@N00/5848843">Flickr</a>