Guinness Master Brewer Fergal Murray officially marks the beginning of St. Patrick's Day celebrations around the world taking place throughout the weekend by pulling a pint of Guinness draught at the Guinness Storehouse, Ireland's No. 1 international tourist attraction. Guinness Storehouse hosts exciting St. Patrick's Day and Irish-themed festivities throughout the weekend to celebrate this national Irish holiday. (March 15, 2013)