Horse Guards Parade is a large open space located in London, England. It is situated between Whitehall and St. James's Park and is known for its impressive views of historic buildings, including the Horse Guards building, which houses the Household Cavalry. The parade ground is famous for hosting the annual Trooping the Colour ceremony, which celebrates the official birthday of the British monarch. Visitors can often see the ceremonial changing of the guard, where soldiers in traditional uniforms perform a formal ceremony, showcasing British military traditions.