Festes de la Mercè On September one of the favourite festivities of those living in Barcelona takes place, the ‘Dia de la Mare de Deu de la Mercè’. ‘La Mercè’ – short for the long name of the festivity – is celebrated on September 24th, but the celebrations and events always extend a couple more days (this year they go from the 22 th to the 25th). The guest city this year will be Iceland’s capital,...