Every year on Memorial Day, a sporting event called the Indianapolis 500 is held at the Indianapolis Motor Speedway in Indiana, USA. It is a major car race that features 33 drivers competing in 200 laps around the 2.5-mile track. The event is considered to be one of the biggest sporting events in the world, attracting over 300,000 spectators and millions of viewers worldwide. The race is a tribute to the men and women who have served in the armed forces, as it takes place on Memorial Day, a day to honor those who have died while serving in the military.