The University of Melbourne, established in 1853, is Australia's second-oldest university. It is a public research university located strategically in one of the most glamorous cities in the country. It has 12 colleges located in and around the city under its academic umbrella and caters to a large number of local and international students. The University of Melbourne has 11 separate academic units and is in collaboration with several research organisations and institutions. A sandstone university, it is also affiliated with the Group of Eight, Association of Commonwealth Universities (ACU), Association of Pacific Rim Universities (APRU), and Universitas 21.