Perhaps I should bite...
http://www.pbase.com/image/30097883
This was done in my time honoured way of late:
Channel Mixer (112,100,-122) Monochrome box ticked, set layer to, I think, Hard Light as a layer style, tho it might've been Pin LIght.
& then various curve layers etc to adjust.
http://www.pbase.com/image/30053035/medium
this one is as the caption says, but from memory, the channel mixer was applied as above, but with Exclusion chosen as a layer style. Then I added a Hue/Saturation layer above it, turning saturation all the way down i think, but if not, a hint of blue with the Colorise box ticked.
then curves contrast etc to suit.
should add that the Nikkor 12-24 provided the mad distortion of the ruin.. i love pointing this lens nearly to the floor or sky, capturing the skyline & whatever object in its distortion...
finally
http://www.pbase.com/image/30034775/medium
same as before, layer style set to Mulitply. No Hue Saturation layers tho.