Porter's lodge entrance to Faculty of Human, Social, and Political Science building (research centre in Cambridge, UK), part of historical Cavendish Laboratory site
<a href="//commons.wikimedia.org/wiki/User:Deryck_Chan" title="User:Deryck Chan">Deryck Chan</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>