History buff Tiffany Alnefelt, 30, met her Swedish husband while she was studying in Ireland. The pair now run an alternative tour for visitors to Stockholm, via some of the city's oldest pubs. Bobbie Carlson tagged along. Long wooden tables fill candle a candle lit room. Cosy furs cover the seats and Viking shields and helmets adorn the walls. This is the setting at Aifur, a well-known Viking bar in Stockholm's Old Town (Gamla Stan) and the first of four stops on the Stockholm Historic Pub Tour. What started as a mutual interest, has turned into an exciting part-time career...