Such a lovely location, just outside the botanical gardens. The gallery itself was really big once inside, yet easy to navigate around. The range of art work on display was incredible, but the contemporary section downstairs is the section I'd recommend. On the lower level you can see pieces by Sol LeWitt and Picasso.
The Art Gallery of New South Wales is a large state gallery located in the Domain on the edge of the Royal Botanic Garden. There are 3 main galleries. The old traditional paintings and the modern galleries. In addition to these there is an aboriginal gallery, photography gallery and several temporary exhibition galleries. This is one of the main places in Australia that major traveling international exhibitions visit.
This is my favourite Art Gallery in Sydney. Admission into the Gallery is free, but you will need to pay for some of the exhibitions. There are plenty of free exhibitions there too, so don't feel like you have to spend a lot of cash to enjoy all the great art that this place has to offer.
Art Gallery of NSW = 3.5 stars. Paid exhibits are hit-or-miss (an excellent Francis Bacon retrospective being an example of the former type), but the museum's free collection is reasonably extensive and contains some fine works as well. The indigenous art section is (predictably) quite good, but the European and Australian painting sections are respectable as well, and the Asian art collection boasts some quite good pieces. A good 'free' activity near the city centre and Botanic Gardens.
Sydney's most regarded public gallery is a must when in town and is free for most exhibits. Up until March 1st, AGNSW is hosting "Pop to Popism," the most extensive exhibition of pop art ever shown in Australia, featuring pop art pieces from Australian artists as well as from the illustrious giants Andy Warhol, Jeff Koons and Roy Lichtenstein. Don't miss the pop up cafe inside the exhibit!