This photo of the Opera House was taken from the south pylon of the Sydney Harbour Bridge.  Though it costs over $100 to go on the official BridgeClimb, it is free to walk across the Harbour Bridge and costs only a few dollars to ascend the elevator to the pylon observation tower.  Of course, your view is obstructed by the protective grating, but if you put your face up close you get the view you will see if you roll your mouse over the image!