Arlington Park is a horse race track in the Chicago suburb of Arlington Heights, Illinois. There is a lot of history to the track as it was the first worldwide to host a one million dollar purse race in 1981. It was the first to install a public broadcasting system and also introduced the trifecta wagering in 1971. (Guessing the first three horses in order).
Chicago itself, is known for its horse racing days, as the sport has been popular since the early 1800s.
The track has a one mile and one-eighth dirt oval and a one mile turf oval. The track is capable of seating at least 50,000 with extension. There is stabling on the backstretch for over 2,000 horses.