If Pamplona, Spain is famous for one thing, it's the annual Running of the Bulls.
Each year, thousands of people run from a pack of charging steers during the city's San Fermin Festival.
Thursday marked the first run of the 2011. In the sprint, four people were taken to the hospital, but thankfully no one was seriously gored by horns.
The festival runs from July 6 to July 14, and along with the daily Bull Runs, there will be bullfights, parades, fireworks, sing-alongs, and street parties.