No trip to Emerald Isle is complete without a visit to Northern Ireland. Rick tours bustling Belfast, sneaking a peek at its politically charged neighborhoods. Then he heads for the Antrim Coast, and goes wild in Portrush, Ulster's Coney Island. He taste-tests Irish whiskey, scrambles over six-sided rock columns, putters through a world-class golf course, and stomps his feet to Irish music in rough-and-tumble Derry. (4 of 13)