Centre Point is a 117 m (385 ft), 34-story tower at Tottenham Court Road, London—not in Sydney. Completed 1966; tallest in London until 1980 (NatWest Tower). Now ~22nd tallest in London.
Often confused: Sydney Tower (also called Centrepoint Tower, AMP Tower, Westfield Tower) stands 309 m (1,014 ft) at 100 Market St, Sydney. It’s the tallest structure in Sydney and 2nd tallest observation tower in Southern Hemisphere.
Ping An Finance Centre, Shenzhen, China – 599 m (1,965 ft), 115 floors.
Top 3: Burj Khalifa (828 m), Merdeka 118 (679 m), Shanghai Tower (632 m).