The Australian Museum is a major state public institution situated at the intersection of William Street and College Street in the Sydney central business district, opposite Hyde Park. Established originally as the Colonial Museum or Sydney Museum, it is the oldest natural history museum in Australia and the fifth oldest worldwide. Funded and operated by the New South Wales state government, the museum holds a heritage-listed complex that highlights evolving scientific, architectural, and cultural history.
First conceived in 1827 by Earl Bathurst and initially occupying various Sydney locations, the institution relocated to its permanent site in 1849. The architecture reflects a blend of styles built across different eras by successive Colonial and Government Architects. The original 1846 sandstone structure, designed in the Greek Revival style, opened to visitors in 1857. Over time, the facility expanded to include a neoclassical west wing built in 1868, a six-story International Style extension completed in 1963, a 2008 Collection and Research building, and a glass box entryway known as the Crystal Hall added in 2015. A major upgrade finalized in late 2020 introduced Hintze Hall, expanded temporary exhibition areas, education rooms, a shop, a café, and a members lounge.
Developed on a model of an encyclopedic warehouse for natural and cultural history, the museum's holdings have grown to more than 21 million objects. Exhibits feature permanent galleries and temporary displays covering anthropology, mineralogy, palaeontology, and vertebrate and invertebrate zoology. Visitors can explore vast collections detailing the ecology, wildlife, evolution, and cultural heritage of Australia and the Pacific region.
Beyond its public galleries, the institution conducts extensive scientific, taxonomic, and systematic research. Its central hub for researchers in Sydney is the Australian Museum Research Institute, established in 2013. The museum also operates the Lizard Island Research Station off the coast of Queensland near Cairns, which focuses on coral reef ecology and climate change impacts. General admission to the museum is free for the public.
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