Aug. 14: A dog races at London's Walthamstow’s greyhound stadium. The finish line is looming for the greyhounds of Walthamstow Stadium. The 75-year-old temple to the archetypical British sport of greyhound racing was to close on Saturday. A London landmark famed for its heady atmosphere and huge pink-and-green neon sign, the track has been frequented by everyone from Winston Churchill to Brad Pitt. Now it is closing after the owners agreed to sell the site to developers.