I am scared of heights.
But I think I can manage this:
Picture from Bridge Climb Sydney.
What an adrenaline rush it would be!
The highest point is 134 metres above sea level. Cost : AUD$188-$295, rather pricey. Choice of day, night, twilight or exclusive dawn climbs.
If I ever have the chance to do this, I think it would cure my height vertigo (acrophobia - I wikipedia-ed) for good. Right now, even looking down from three stories up makes me feel queasy.
Either this, or the Macau Skywalk. Or a bungy jump.
Whenever that will be.