Old windmill, the oldest building in the state of Queensland, is located in Wickham Park in Brisbane. The mill was built by exiled convicts in 1824 to grind grain - wheat and corn. In December 1828, she had her wings wind power. After the murder of two members of a geological party near Mount Mount Lindsay in May 1840, three local Aboriginal people have been charged with this crime. In July 1841, two of them were hung on the crossbar of the upper windows of the mill.

In January 1862 Old windmill became the first home of the Queensland Museum. Later it was used as a signal tower, and today serves as the station weather observation.

At the end of the 19th century mill building has been "entered" into the cement plaster to protect the brick and masonry from heavy rains. The current plaster was applied to the building in 1988, it mimics the stone blocks that built the mill.

From 1922 to 1926 the mill has been a meeting place for members of the Institute of Radio Engineers, where they conducted their experiments, in particular the transfer of tested medium wave AM broadcast band. The building is ideally suited for this purpose, as a panoramic overview of Moreton Bay in the east to the hills of the Darling Downs to the west. Next to the mill was installed 45-meter high tower and 24-meter antenna mast between the mill and the - in those days it was the most impressive building in Queensland. In the 1930s and 40s the building was used to broadcast the first television.