Tennis recreational players and is also a popular worldwide spectator sport. The four Grand Slam tournaments (also referred to as the Majors) are especially popular: the Australian Open played on hard courts, the French Open played on red clay courts, Wimbledon played on grass courts, and the US Open also played on hard courts. Historians believe that the game's ancient origin lay in 12th century northern France, where a ball was struck with the palm of the hand. Louis X of France was a keen player of jeu de paume ("game of the palm"), which evolved into real tennis, and became
Hampton Court Palace Great Gatehouse ("A"), the palace's principal entrance, by two stories and removed the lead cupolas adorning its four towers. Once opened, the palace soon became a major tourist attraction and, by 1881, over ten million visits had been recorded. Visitors arrived both by boat from London and via Hampton Court railway station, opened in February 1849. On 2 September 1952, the palace was given statutory protection by being grade I listed. Other buildings and structures within the grounds are separately grade I listed, including the early 16th-century tilt yard tower (the only surviving example of the five original towers); Christopher