Catedrál del Salvador (commonly called La Seo) in Zaragoza, Spain, built over a former Moorish mosque. -- Photo by by VICMAEL. Excellent example of Mudéjar Architecture [http://whc.unesco.org/en/list/378].
Zaragoza, also called Saragossa in English, is the capital city of the Zaragoza province and of the autonomous community of Aragon, Spain. It is situated on the Ebro river and its tributaries, the Huerva and the Gállego, near the centre of the region, in a valley with a variety of landscapes, ranging from desert (Los Monegros) to thick forest, meadows and mountains.