From the largest  annual tomato fight in Spain, to Scotland's "Up Helly-Aa" fire festival, a look  at those special days when people around the world go slightly nuts
Shetland  Islands, Scotland: "Up Helly-Aa" Fire Festival. A tribute to the islands' Viking  Past, Up Helly-Aa ("End of the Holy Days") culminates with the burning of a  32-ft. Replica of a Viking longship.
 
