Australia Square

Australia Square is an office and retail complex in the central business district of Sydney, Australia. Its main address is 264 George Street, and the Square is bounded on the northern side by Bond Street, eastern side by Pitt Street and southern side by Curtin Place.The building was designed by Harry Seidler & Associates. Today, it remains a landmark building in Sydney and is regarded as iconic to Australian architecture. It has even been described as the most beautiful building in Australia.

Officially named the Tower Building, the iconic circular tower of Australia Square was Australia's first true skyscraper.It was the World's tallest light weight concrete building at the time it was built. The Tower Building is approximately 170 metres tall and occupies only one quarter of the block The original proposal included 58 floors; however, this was reduced to 50. On the 47th floor is a revolving restaurant called The Summit and the 48th floor houses an observation deck. The building contains one of Sydney's largest basement car parks with spaces for 400 vehicles.

Facing Pitt Street is the 13-storey Plaza Building, a comparatively simple rectangular office building.Alongside the Tower Building sits a large abstract steel sculpture by Alexander Calder.Extensive public open space, including fountains, is a feature of the Square. This design feature is an early example of including a public open space on private land.There are numerous entrances to the retail precincts in the lower ground level of the Tower, which include a post office and food outlets.