When you walk into a bar in Ireland you could shout across at the barman and ask for a pint of plain, the good stuff, your best or Irish Mother’s milk. You could even just walk up to the bar and hold your forefinger in the air, any barman worth his salt would know that you were asking for a pint of Guinness. Officially the most internationally recognized symbol of Ireland, Guinness is the most popular alcoholic drink in Ireland and in many other countries. Here are the TopTen facts about the black stuff.