The Pilar Basilica is one of the most important Marian sanctuaries in the catholic world and is visited every year by thousands of pilgrims. It is also a leading artistic centre with a collection of valuable works from different periods, in particular the frescos by Goya.The present day building is closely related to the increase in Marian devotion throughout the 17th century. The former Gothic-Mudejar construction had become outgrown by the increasing number of believers and it was necessary to erect a new imposing monumental temple, which was closer to the triumphant spirit of the Counter-Reformation and the newly acquired status of co-cathedral.