This weekend, the Sydney Centre Point Tower had a new logo installed. The old AMP logo was removed and a Red Westfield Logo was installed.
Here is a video of the sign change
The Sydney Tower has been owned by Westfield since December 2001, when it was renamed Sydney Tower. The tower was previously owned by AMP, who also managed the shopping mall beneath the tower.
The tower is the second tallest building in Australia (the Q1 tower on the Gold Coast is the tallest) standing at 309 meters above the road level. With the lightning rod, the top of the tower is 327 m (1,073 ft).
Read more here http://en.wikipedia.org/wiki/Sydney_Tower