East façade of the <a href="//commons.wikimedia.org/wiki/Category:Puerta_de_Alcal%C3%A1,_Madrid" title="Category:Puerta de Alcalá, Madrid"><b>Puerta de Alcalá</b></a> in <a href="//commons.wikimedia.org/wiki/Madrid" title="Madrid">Madrid</a> (<a href="//commons.wikimedia.org/wiki/Spain" class="mw-redirect" title="Spain">Spain</a>). Projected in 1769 by architect <a href="//commons.wikimedia.org/wiki/Category:Francesco_Sabatini" title="Category:Francesco Sabatini">Francesco Sabatini</a> (1722–1797) and built from 1774 to 1778.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/exfordy/">Brian Snelson</a> from <a href="https://en.wikipedia.org/wiki/en:United_Kingdom" class="extiw" title="w:en:United Kingdom"><span title="country in north-west Europe">United Kingdom</span></a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/exfordy/2189151607/">Flickr</a>