James Whitcomb Riley

Historical marker location:

Main Street, Greenfield, Indiana

( Marker is on Main Street (U.S. 40) east of State Street (State Road 9), on the right when traveling east.)

The Indianapolis Motor Speedway, which hosts the Indy 500, was originally built as a test track for car manufacturers. The first race was held in 1909 and it has since become one of the most famous race tracks in the world.