Finally got around to answering Pete's challenge.
Unfortunately, the Mt Coot-tha lookout is only for pedestrians. I took a shot from the road, but the trees blotted out 9/10 of the horizon. A bit further down I got a reasonable view, but it always looks better with the eyes than the camera. It looks like a Beijing smog, but it's just because I pushed the contrast to the limit to make the buildings a bit more distinct.
Anyhoo, go find a transmission tower and see if you can get the whole height in as well as your bike.
Maybe if I'd lain on my back as if pulling the sump drain nut...