Indianapolis Motor Speedway
Considered relatively flat by American standards, the track is a two-and-a-half-mile, nearly rectangular oval with dimensions that have remained essentially unchanged since its inception: four 1/4-mile turns, two 5/8-mile long straightaways between the fourth and first and second and third turns, and two 1/8-mile short straightaways, termed "short chutes," between the first and second, and third and fourth turns.
The Indianapolis Motor Speedway is the world’s largest spectator sporting facility, with more than 250,000 permanent seats. If the seat boards from the grandstands at IMS were laid end-to-end, they would stretch 99.5 miles.
Churchill Downs, Yankee Stadium, the Rose Bowl, the Roman Colosseum and Vatican City all can fit inside the IMS oval, which covers 253 acres.