Thousands of revelers jam Pamplona for running of the bulls
Spain San Fermin
Revelers in Ayuntamiento square, in Pamplona, northern Spain, Friday, July 6, 2012 celebrate the start of Spain's most famous bull-running festival with the annual launch of the "chupinazo" rocket. Perhaps best glorified by Ernest Hemingway's 1926 novel "The Sun Also Rises," the San Fermin festival is known around the world for the daily running of the bulls. (AP Photo/Alvaro Barrientos)