Built in 1858 by a 19-year-old architect, it was the city’s first Italian Renaissance building and many consider that its elegance has not been surpassed by anything in Melbourne since. Contains displays on the history of Melbourne as well as the history of gold in Victoria, including the original gold vaults. Fun activities for children, including the chance to earn a novelty gold licence. The expansive Treasury Gardens behind the building are also worth a visit.

The Old Treasury Building is a former government building, now history museum, located on Spring Street in the city centre of Melbourne, in Victoria, Australia. Built between 1858 and 1862 in the grand Renaissance Revival style, the building was designed to accommodate the Treasury Department, various government officials' offices including the Governor In Council, and basement vaults intended to house gold from the Victorian gold rush. It now houses a range of functions, including a museum of Melbourne's history, known as the Old Treasury Building Museum. The building was added to the Victorian Heritage Register on 20 August 1982; and to the now defunct Register of the National Estate on 21 March 1978.