In which city is Australian Open tennis tournament held?

The Australian Open is a major tennis tournament held annually at Melbourne Park in Melbourne, Victoria, Australia. The tournament is the first of the four Grand Slam tournaments. The other Grand Slams are the French Open, Wimbledon, and the U.S. Open Tennis. Until 1968, the Australian Open was called the Australian Championships, and was an amateur event until the era of "open" tournaments began that year. The tournament was first played in 1905 as the Australian Championships, then as the Australian Championships in 1927, becoming the Australian Open in 1968. The tournament has moved a few times to different cities in Australia and has even been played in New Zealand 3 times.