Called the "corrida de toros" in Spanish, bullfighting takes place  mostly in Valencia, Spain, at the Plaza De Toros between March and October.  Las  Fallas Festival kicks off Spain's festival season and  unofficially opens the season of bullfighting worldwide.

Supporters of bullfighting argue that it is an important Spanish tradition and cultural art form, while animal rights activists say it's a cruel sport only causing suffering for bulls and horses. Francisco Rivera stares  down a bull during a bullfight at Plaza De Toros March 11, 2012, in Valencia, Spain.  (Photo by Europa Press/Getty Images)

Designed by architect Sebastián Monleón, the Plaza de Toros in Valencia Spain,  hosted its first bullfight in May 1851, and has been one of the most famous places for bullfighting worldwide.  French bullfighter Sebastian Castella makes a pass during a bull fight at the Fallas Festival in Valencia March 17, 2012. (Jose Jordan/AFP/Getty Images)

Mexican bullfighter Diego Silveti makes a pass during a bullfight at the Fallas Festival in Valencia March 14, 2012.  (Jose Jordan/AFP/Getty Images)

Mexican bullfighter Arturo Saldivar gets bull-horned during a bullfight at the Plaza Valencia bull ring July 23, 2011, in Valencia, Spain.  (Photo by Manuel Queimadelos Alonso/Getty Images)

Mexican matadora Lupita Lopez being gored by a San Judas Tadeo bull during a bullfight at the Plaza Mexico, March 4, 2012, in Mexico City. Lopez was not injured. (Yuri Cortez/AFP/Getty Images)

Bullfighter Juan Jose Padilla attempts to place the banderillas into a bull before being blinded in one eye after being gored in his face during a bullfight at La Misericordia bull ring Oct. 7, 2011, in Zaragoza, Spain.  (Europa Press/Getty Images)

Bullfighter Juan Jose Padilla returns to bullfighting at Olivenza bullring  March 4, 2012, in Olivenza, Spain. Padilla was gored by a bull in his face during a bullfight at La Misericordia bull ring Oct.  7, 2011, in Zaragoza, Spain.  (Europa Press/Getty Images)

Bullfighter Juan Jose Padilla returns to bullfighting at Olivenza bullring  March 4, 2012, in Olivenza, Spain. Padilla was gored by a bull in his face during a bullfight at La Misericordia bull ring Oct.  7, 2011, in Zaragoza, Spain.  (Europa Press/Getty Images)

French bullfighter Thomas Duffau is turned over by his second bull during a bullfight at the Fallas Festival in Valencia March 14, 2012.  (Jose Jordan/AFP/Getty Images)

Mexican matadora Hilda Tenorio makes a muleta pass on a San Judas Tadeo bull during a bullfight at the Plaza Mexico March 4, 2012, in Mexico City.  (Yuri Cortez/AFP/Getty Images)

French bullfighter Sebastian Castella makes a pass during a bullfight at the Fallas Festival in Valencia March 17, 2012. (Jose Jordan/AFP/Getty Images)