Stumbled across this collection of cool places to shoot.
Apart from the SS Ayrfield, which many of you have shot, most are a little hard to get to

http://www.boredpanda.com/abandoned-places/

Hmm, my progress so far...
I have a photo from inside a cooling tower at Stanwell (during construction) with a cheap film camera 20 odd years ago , and a shot in Sorrento looking down at that same mill from 4 years ago (albeit with a humble P&S back in my pre DSLR days )....but the rest might take me a while to tick off....