The San Fermín festival, featuring a daily running of the bulls, is one of Spain's best-known celebrations, drawing hundreds of thousands of visitors to the northern city of Pamplona each year.

Revelers poured red wine and held traditional red scarfs for the "Chupinazo," the opening of a festival in northern Spain where hundreds of people are chased through narrow…

The runners risked their lives putting themselves in front of six fighting bulls led by six steers as they sprinted along the half-mile run through the streets of Pamplona's old…