Escalators at Baixa-Chiado metro station, Lisbon, Portugal
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/24201453@N04">Andreas Manessinger</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/amanessinger/24325015315/">A Long Way to Fall</a>