The cathedral of Santiago de Compostela

The Cathedral of Santiago de Compostela is a part of a major pilgrimage route that dates back to the early middle ages. It is the burial place of Saint James the Greater.

There are four facades that encase this massive complex, but the façade of Obradoiro is the main entrance. The current façade was built in the 18^th century by Fernando de Casas Novoa. It is a Spanish baroque style and was built to incase the old façade. You can still see the ancient façade through the large glazed windows of the outermost façade.

The grand stair was built in the 17^th century by Ginés Martínez. The two ramps join together to create a diamond shape. They frame the entrance of the crypt of Master Mateo.

sources. 

http://santiago-online.com/eng/Santiago_cathedral.php

http://en.wikipedia.org/wiki/Cathedral_of_Santiago_de_Compostela

http://en.wikiarquitectura.com/index.php/Santiago_de_Compostela_Cathedral