The All England Club is best known for being the venue to host the Wimbledon tennis tournament each year. Wimbledon is widely considered the best and most prestigious tennis tournament in the world. The Wimbledon tournament is held in Wimbledon London and is one of four Grand Slam tennis tournaments. Wimbledon is the oldest tennis tournament and also the only Grand Slam to still be played on grass. The Wimbledon tournament lasts for 13 days and starts in June.