Two railway bridges side by side, somewhere out towards Meadowbank (I think - my geographic knowledge of western Sydney is pretty patchy. I generally point towards the Blue Mountains and say, "There be bogans" when people ask me what is out there).
The bridge on the left, as you might hope, has not carried railway traffic for many a year. It looks worse close up than it does in this photo. It's been converted into a bike/pedestrian bridge, and I now wish that I hadn't been underneath for a look. It always feels pretty creaky when I ride over it, and I'll now worry that I'll go crashing through the boards Indiana Jones style one day.