Watch: 1966 Indianapolis 500 - Race Highlights

As Fernando Alonso prepares to embark on another attempt to complete the Triple Crown of motorsports by winning the prestigious Indianapolis 500, It's time to look back at the only driver to achieve the feat to date. Formula One World Champion Graham Hill arrived at the famous Brickyard as a "rookie" in 1966 and led only 10 laps -- but they were the most important final 10.