 These matches, normally held around the middle of September, are normally fully sold out, with well over 80,000 people packed into Croke Park, the largest stadium in Europe not used primarily for Soccer.Another festival that celebrates the Irish Culture and Diaspora all over the world is the Rose of Tralee.This international competition, which is celebrated among the Irish communities all over the world, is held annually in the town of Tralee in Co. Kerry.