As best I recall (writing (or more precisely updating) this description 15 years after this shot was taken), I was in the city for an absolutely awful play which I don't even recall the name of, and to which I didn't return after the intermission. I decided to go photo shooting instead. I was also practicing with polarising filters, as you may be able to guess from the nice, dark sky.
This was relatively early in my photo journey. Granted it was 4 years after I bought my first DSLR (the Canon 300D) but I did not start to get serious until 2007. The photo classes that I had taken were by photographers who had spent most of their life in film and were believers in The Old Ways. And indeed The Old Ways worked here since the sky avoided being blown out, and is probably a bit more "natural" than anything that you could get in post-production. Maybe. Of course the 40D was a mirrored DSLR so you could get a "feel" for how a polarising filter would look with such a camera.
Since moving to Olympus in 2013 I've been using mirrorless cameras. These make working with filters harder because the electronic viewfinders try to "fix" what you're seeing and have no concept of having their view altered by lens filters. I therefore haven't really used lens filters for literally years... but I did here.
This is the stern of the Royal Caribbean International cruise line's ship Rhapsody Of The Seas, which was described in image 2817. The circular observation tower at the northern end of the Overseas Passenger Terminal at Circular Quay echoes the shape of the ship's funnel.