Megastructures

Indy Motor Speedway (2005x12)

Air date: Sep 13, 2005

Spanning 559 acres and host to over 250,000 permanent seats, the Indianapolis Motor Speedway is the largest seated sporting arena in the world. The Speedway opened its gates in 1909 during the horse-and-buggy era. Now, it is one of the most technologically advanced racetracks on the globe.