Front door of Pedro Cerbuna hall of residence in Saragossa, Spain
<a href="//commons.wikimedia.org/wiki/User:Jynus" title="User:Jynus">jynus</a>
CC BY 2.5
Photo taken by myself. Originally uploaded to Spanish Wikipedia with GFDL license on 14 feb 2005. Being the author, I can alter the original license.