Anywhere there is sufficient space and interest
It is held in Tokyo, Japan.
Dubai world cup
It's the Kentucky Derby. The race course is in Louisville, Kentucky
The Melbourne Cup is held on Flemington Racecourse in Melbourne.
The Dubai Cup has a US$10 Million purse making it the richest race in the world. The race is held at Meydan Race Track in Dubai, UAE.
The state of Kentucky, where the Kentucky Derby is held
The Cheltenham Gold Cup is a National Hunt horse race, which is held in Cheltenham, England.
Doncaster Racecourse, Doncaster, South Yorkshire, England
The Melbourne Cup, a horse race which occurs on the first Tuesday in November, is held on the Flemington race course in Melbourne, Victoria,
Grand National is an annual hunt horse race which takes places in Aintree Racecourse in Liverpool, England. It was first started in 1839.
The Melbourne Cup
The Preakness Stakes is a horse race held at Pimlico Downs in Baltimore, Maryland once a year. This year on May 15th.