Undoubtedly the monument par excellence of the Barcelona Gothic, and the religious and civil centre of the La Ribera neighbourhood, converted in the 13th century into the new city of merchants, shipowners and sailors, it thus became known as the Cathedral of the sea.

Although a typically Gothic building, we also find baroque features such as the main altarpiece.

The stained glass windows of this basilica, dating from the 15th and 18th centuries, are very famous. The most famous are those of the Ascension, the Maundy, the Last Judgement, the Coronation of the Virgin and those in the apse from the 18th century .