Racehorses, chic outfits and lots and lots of betting slips. On Saturday, Aintree, a suburb of Liverpool, was the scene of the most famous horse race in the world: the Grand National. But even in the run-up to the big race, there was already plenty to do on and around the nearly 200-year-old racecourse. Brimming with tradition and history, the three-day Grand National Festival is deeply embedded in British culture.