I love stuff like this.
I try to avoid the following site because I end up wasting half my life looking at pictures like yours:
http://www.28dayslater.co.uk/forums/

Kevin
Was it you that posted this site up the other week? I clicked the link & i too spent a while reading & looking at the pix 
No but I'd prevously come across it.
I'm with Nickbat in that history used to bore me silly. In fact, the stuff that's all nicely laid out in museums still does. There's an old railway near us (used to run practically through my back garden in the old house). It closed in the 1920's but I saw it on the deeds to the house and have been looking for evidence of it ever since.
You can clearly see where the old track used to lie from the air, and on foot you can tell by the style of the fence posts, buildings, etc. that a railway was once there.
Too little of our engineering heritage gets preserved and opened up to the public, IMHO. It has shaped our lives, IMHO, to a greater extent then art, for example, but art gets preserved without question whereas most engineering relics just get demolished.
Kevin