One of the most representative examples of Catalan Gothic architecture, it features a sombre but beautiful interior. The upsweeping verticality and lightness of the interior are especially surprising considering the blocky exterior surfaces. Built between 1329 and 1383, it was once was home to a Christian cult in the late 3rd century. The church is dedicated to Saint Mary of the Sea, since the quarter was dedicated to the jobs related to the sea, from sailors to harbor works, commerce, even coin exchange. The inside was burned during the civil war, but it is still very interesting. Next to the church, you can see a monument, called Fossar de les Moreres, which is the place where many fighters where buried after the Barcelona defeat in 1714, so it is an important monument for Catalan nationalism.