Tons of overripe tomatoes were hurled for an hour in a massive red food fight in town of Bunol, Spain, on Aug. 31. The La Tomatina festival -- held each year on the last Wednesday of August -- evolved from a street fight in the 1940s when a group of young men who wanted to participate in the "gigantes y cabezudos" parade used tomatoes from a vegetable stand as weapons. An estimated 40,000 people showed up this year for the food fight. -- Lloyd Young ( 19 photos total