Citigroup Centre is a 243 m (797 ft) skyscraper located in Sydney, New South Wales, Australia. The building is the 10th tallest building in Australia but upon completion in 2000 was the 8th tallest. Citigroup Centre is also the second-tallest building in the city when measured to its spire. The architect was Crone and Associates, headed by Albert Speer.
The building has 41 levels of office space, 5 levels of underground parking and 4 levels of commercial space known as "The Galeries".  An underground retail arcade connects the lower ground floor to Town Hall railway station and the Queen Victoria Building.