Spain: Pamplona kicks off running of bulls festival

The blast of a traditional firework opened nine days of uninterrupted partying in Pamplona's famed running of the bulls festival. During the festival, Pamplona's population swells from nearly 200,000 residents to around a million visitors, who are attracted by the adrenaline boost of bull runs along an 850-meter (930-yard) street course to the city's bullring and seamless nights of partying.